Hell Creek
Description
Source: Wikipédia
La formation de Hell Creek est une formation géologique, célèbre pour sa richesse en fossiles et son âge stratigraphique datant principalement du sommet du Crétacé supérieur, mais avec quelques portions du Paléocène inférieur. Elle montre dans sa partie sommitale la présence d'un mince niveau enrichi en iridium, enregistrement de l'événement connu sous le nom d'extinction Crétacé-Tertiaire. Son nom vient de la Hell Creek (le « ravin de l'enfer ») où elle affleure largement, près de Jordan, au Montana (États-Unis). Elle s'étend sur des parties du Montana, du Dakota du Nord, du Dakota du Sud et du Wyoming. En 1966, la Zone fossilifère de Hell Creek a été désignée Site naturel national par le National Park Service.
Il s'agit d'une série d'argiles, de mudstones et de grès d'eau douce et saumâtre déposés au Maastrichtien et au Danien, créés par l'activité fluviale dans les chenaux fluviaux et les deltas fluctuants, ainsi que par de très rares dépôts de marais tourbeux le long de la marge continentale de basse altitude, face à la Voie maritime intérieure de l'Ouest du Crétacé supérieur. Le climat n'était pas extrême ; la présence de crocodiliens et de palmiers suggère un climat subtropical et tempéré sans gel prolongé.
La plus grande collection d'ossements de Hell Creek se trouve au Musée des Rocheuses de Bozeman, dans le Montana. Les spécimens exposés sont le fruit du projet Hell Creek du musée, une initiative conjointe lancée en 1998 entre le musée, l'Université d'État du Montana, l'Université de Washington, l'Université de Californie à Berkeley, l'Université du Dakota du Nord et l'Université de Caroline du Nord.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 280upper end, Gilbert Creek : Montana - Garfield 4210 11822 12319 13456 17480 62949 64040 71136
upper end of Gilbert Creek, 120 miles north of Miles City, MT. "probably" section 27 or 28, T22N, R40E, Garfield Co. Coordinates for sec. 27.- Ankylosaurus magniventris
- Edmontosaurus identifié comme Anatosaurus sp.
MPM locality 3850 (Hell Creek Formation) : Montana - McCone 4306 14453 93074
Bug Creek 7 1/2 minute Quadrangle, NE 1/4 of section 5, Township 22N, Range 43E, approx. one mile east of Fort Peck Reservoir and 1.5 miles northwest of the Bug Creek Anthills locality. The lat long is for the Fort Peck Reservoir.Bug Creek Anthills : Montana - McCone County 704 4377 4381 12971 42675 53515
NW 1/4 and SW 1/4, Sec. 9, T 22 N, R 43 E. Near Fort Peck Reservoir- Coeluridae
- Paronychodon identifié comme Paronychodon lacustris
- Theropoda
- Dromaeosauridae
- Orodromeus makelai
- Pachycephalosauridae
- Edmontosaurus identifié comme Anatosaurus sp.
- Triceratops
Bad Mouth Turtle (Reworked) : Montana - McCone 2255 13103 48570
Baldy Butte : Montana - Garfield 960 13103 48570
Baldy Butte SW-Blazing Saddle : Montana - Garfield 820 960 13103 14199 34479 39778 48570
- Theropoda
- Hadrosauridae
- Ceratopsidae
- Theropoda
- Coeluridae identifié comme Coelurosauridae indet.
- Ceratopsia
- Richardoestesia
- Pectinodon
BC Bone-anza (Reworked) : Montana - McCone 2255 13103 48570
Billy Creek 1 : Montana - Garfield 820 960 13103
Billy Creek 2 : Montana - Garfield 960 13103 48570
- Coeluridae identifié comme Coelurosauridae indet.
- Saurornitholestinae
- Ornithomimidae
- Ceratopsidae
- Theropoda
- Paronychodon
Brownie Butte : Montana - Garfield 960 3198 13103 48570
Bug Creek Anthills (Reworked) : Montana - McCone 820 960 962 1535 13103 29037 39778
Clam Hollow : Montana - Garfield 960 13103 39778
Cole Anthill 2 : Montana - Garfield 960 13103 48570
Dry Fork Coulee : Montana - Garfield 960 13103 14199 34479 39778
Engdahl Anthills 1 : Montana - Garfield 960 13103 14199
- Chirostenotes
- Paronychodon identifié comme Paronychodon lacustris
- Dromaeosauridae
- Coeluridae
- Coelurosauria
- Theropoda
- Hadrosauridae
- Ceratopsidae
- Dinosauria
Engdahl Anthills 2 : Montana - Garfield 820 960 12202 13103 34479 71136
- Ankylosaurus magniventris
- Chirostenotes
- Paronychodon identifié comme cf. Paronychodon lacustris
- Coeluridae
- Theropoda
Engdahl Anthills 3 : Montana - Garfield 820 960 13103 14199 34479 39778
- Ankylosauria
- Chirostenotes
- Dromaeosauridae
- Thescelosaurus
- Coeluridae
- Coelurosauria
- Theropoda
- Theropoda
- Theropoda
- Hypsilophodontidae
- Hadrosaurinae
- Richardoestesia isosceles
Engdahl Anthills 4 : Montana - Garfield 960 13103 48570
Eureka Quarry, SDSM loc. V637 : South Dakota - Harding 66164
14 mi. SW of Buffalo, near top of Jump Off Bluffs- Paronychodon identifié comme Paronychodon lacustris
- Dromaeosaurus
- Saurornithoides mongoliensis
- Troodon
- Chirostenotes
- Gorgosaurus
- Tyrannosaurus
- Theropoda
- Thescelosaurus neglectus
- Pachycephalosauridae
- Nodosauridae
- Triceratops
Flat Creek 1 : Montana - Garfield 960 13103 14199 48570
- Richardoestesia isosceles
- Edmontosaurus identifié comme Anatosaurus sp.
- Ceratopsidae
- Hypsilophodontidae
- Theropoda
- Theropoda
- Theropoda
- Saurornitholestinae
- Coeluridae
Flat Creek 2 : Montana - Garfield 960 13103
Flat Creek 3 : Montana - Garfield 960 13103 39778 48570
Flat Creek 5 : Montana - Garfield 820 960 12202 13103 34479 39778 48570
- Dromaeosauridae
- Paronychodon identifié comme Paronychodon lacustris
- Theropoda
- Tyrannosauridae identifié comme Aublysodon mirandus
- Edmontosaurus identifié comme Anatosaurus sp.
- Paronychodon
- Richardoestesia
- Richardoestesia isosceles
- Pectinodon
- Thescelosaurus
- Paronychodon identifié comme cf. Paronychodon lacustris
- Richardoestesia gilmorei
- Saurornitholestinae
Flint's Stones : Montana - Garfield 960 13103
Fred's Place : Montana - Garfield 960 13103
Gynnoskus : Montana - Garfield 960 12202 13103 14199
Haley : Montana - Garfield 960 13103 48570
Harbicht Hill (Reworked) : Montana - McCone 820 962 2255 3198 4381 13103 14199 53515 63164
- Chirostenotes
- Dromaeosauridae
- Theropoda
- Theropoda
- Dromaeosauridae
- Hypsilophodontidae
- Hadrosaurinae
- Hadrosauridae
- Ceratopsidae
Harmonica Hollow : Montana - Garfield 960 13103
Hauso 1 : Montana - Garfield 820 960 13103 39778 46718
Jaw Breaker (Reworked) : Montana - McCone 820 2255 13103
Jordan Coulee : Montana - Garfield 960 13103 48570
Juniper Tree West (Reworked) : Montana - McCone 2255 13103 34479
K-Mark Channel : Montana - McCone 2255 13103
Lead Slug Hill 1 : Montana - Garfield 960 13103 14199 34479 48570
- Saurornitholestinae
- Troodon
- Chirostenotes
- Paronychodon identifié comme Paronychodon lacustris
- Edmontonia
- Thescelosaurus
- Dromaeosauridae
- Coeluridae
- Theropoda
- Tyrannosauridae
- Theropoda
- Hadrosauridae
- Ceratopsidae
- Richardoestesia gilmorei
- Troodontidae
Little Roundtop (Reworked) : Montana - McCone 2255 13103 48570
Penick Coulee 7 : Montana - Garfield 960 13103
PTRM V92067 : North Dakota - Bowman 1984 11749
Little Missouri Badlands- Ceratopsidae
- Hadrosaurinae
- Thescelosaurus neglectus
- Ornithomimidae
- Troodon
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
Rex Hill Locality : Montana - Garfield 960 13103 48570
Rick's Place : Montana - Garfield 960 13103
Ried Coulee 1 : Montana - Garfield 960 13103 14199 39778 48570
Sandstone Basin, UCMP V-80092 : Montana - Garfield 820 1987 13103 34479 39778 67361 75223 82752
- Alvarezsauridae
- Tyrannosauridae
- Coelurosauria
- Edmontosaurus annectens
- Ceratopsidae
- Ankylosauridae
- Triceratops
- Richardoestesia isosceles
- Pachycephalosaurus
Second Level (Reworked) : Montana - McCone 2255 13103
Stumpf Site (Level A) : North Dakota - Morton 1921
9 km SE of HuffStumpf Site (Level B) : North Dakota - Morton 1921 80623
9 km SE of HuffTedrow Quarry C (Reworked) : Montana - McCone 2255 13103
Tedrow Quarry D (Reworked) : Montana - McCone 2255 13103 48570
Three Buttes 7 (Reworked) : Montana - McCone 2255 13103 34479 48570
Trumbo's Anthill : Montana - Garfield 820 960 13103 34479 48570
- Chirostenotes
- Coeluridae
- Theropoda
- Thescelosaurus
- Hadrosauridae
- Ceratopsidae
- Dinosauria
- Richardoestesia
- Saurornitholestinae
Up-Up-The Creek 1 (Reworked) : Montana - McCone 2255 34479
- Paronychodon identifié comme cf. Paronychodon lacustris
Up-Up-The Creek 1A (Reworked) : Montana - McCone 2255 13103 34479
- Dinosauria
- Ornithischia
- Theropoda
- Richardoestesia
- Paronychodon identifié comme cf. Paronychodon lacustris
Up-Up-The Creek 2 (Reworked) : Montana - McCone 2255 13103
Up-Up-The Creek 3 (Reworked) : Montana - McCone 2255 13103 34479 48570
- Richardoestesia
- Paronychodon identifié comme cf. Paronychodon lacustris
- Troodon
- Saurornitholestinae
- Troodontidae
Up-The Creek (Reworked) : Montana - McCone 2255 13103
Wild Horse Basin : Montana - Garfield 820 960 13103 48570
Windy Hill : Montana - Garfield 960 13103
- Paronychodon
- Thescelosaurus
- Ornithischia
- Hadrosauridae
- Ceratopsidae
- Hypsilophodontidae
- Theropoda
- Coeluridae
- Tyrannosauridae
Chris's Bonebed (CBB) : Montana - McCone 2333 14199 63164
SW 1/4 of sec 10, T24N, R43E; along Ft. Peck Reservoir, S of Ft. Peck- Dromaeosauridae
- Theropoda
- Tyrannosaurus rex
- Tyrannosaurus rex
- Thescelosaurus neglectus
- Edmontosaurus annectens
- Ankylosauria
- Triceratops prorsus
Moreau River (AMNH) : South Dakota - Perkins 6950 12319 12385 12549 24837 51977 61518 63287
listed only as Dakota, but emended to "near Moreau River, Black Hills, SD" by Brett-Surman (1990); coordinates are for "Moreau River badlands"; area is N of the Black Hills. Listed as "north-east of the Black Hills" in Osborn 1909.Pretty Butte, Cannonball Creek : North Dakota - Slope 6967
0.6 km north of Cannonball Creek on land leased by Lyle Tennant from the US Forest Service. SE1/4, NE1/4, NE1/4, NW1/4, sec 32, T135N, R106W, Badland Draw Quadrangle MT-ND, 7.5 minute series, 1:24,000. West of the road, north of Pretty Butte, 29 miles NW of Marmarth, ND.spring on Rock Creek (AMNH) : Montana - McCone 9592 12314 54103 55599
near a spring on Rock Creek, 20 miles S of Lismas, Garfield Co., Montana- Ceratopsidae identifié comme Triceratops maximus n. sp.
LACM 7245, Engdahl Ranch : Montana - Garfield 4247 10349 10350 10351 15218 51520 62838
sec 34, T21N, R36E, Engdahl Ranch (not F. S. McKeever Ranch, as reported in Molnar 1978) Garfield Co., MTPTRM V91007, Doaks Butte : North Dakota - Bowman 11749
approx. NW 1/4, sec. 32, R106W, T129N- Hadrosaurinae
- Thescelosaurus neglectus
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
PTRM V89004, Doaks Butte : North Dakota - Bowman 11749
approx. NW 1/4, sec. 32, R106W, T129N- Ceratopsidae
- Hadrosaurinae
- Thescelosaurus neglectus
- Caenagnathidae
- Ornithomimidae
- Troodon
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
PTRM V91002, Doaks Butte : North Dakota - Bowman 11749
approx. NW 1/4, sec. 32, R106W, T129NPTRM V92040, Doaks Butte : North Dakota - Bowman 11749
approx. NW 1/4, sec. 32, R106W, T129NPTRM V89003 : North Dakota - Bowman 11749
approx. at center of S edge of sec. 24, R105W, T129N- Ceratopsidae
- Hadrosaurinae
- Thescelosaurus neglectus
- Caenagnathidae
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
PTRM V92007, Mud Buttes : North Dakota - Bowman 11749
approx. center of S edge of sec. 12, R105W, T129NPTRM V94002, Mud Buttes : North Dakota - Bowman 11749
approx. SW 1/4, sec. 1, R105W, T129NPTRM V88054, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, SE1/4PTRM V88040, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88046, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88002, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88018, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4- Ceratopsidae
- Hadrosaurinae
- Tyrannosaurus rex
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
PTRM V88019, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V87012, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4- Ceratopsidae
- Hadrosaurinae
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
PTRM V88017, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88021, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88020, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88003, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88005, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88013, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V88004, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4- Ceratopsidae
- Hadrosaurinae
- Caenagnathidae
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
PTRM V88012, Mud Buttes : North Dakota - Bowman 11749
T129N,R105W,sec2, approx. SE 1/4PTRM V92042, Sunset Butte : North Dakota - Bowman 11749
T131N,R105W,sec21, approx. SE 1/4PTRM V97006 : North Dakota - Bowman 11749
T131N,R105W,sec, approx. SW 1/4NDGS96-23.1 : North Dakota - Slope 11749 59363
T133N,R106W,sec27, approx. center
N of Marmarth in Little Missouri National GrasslandsPTRM V93022 : North Dakota - Bowman 11749
T131N,R105W,sec27, approx. NW 1/4PTRM V93005 : North Dakota - Bowman 11749
T131N,R105W,sec27, approx. NW 1/4PTRM V92068 : North Dakota - Bowman 11749
T131N,R105W,sec27, approx. NW 1/4PTRM V92066 : North Dakota - Bowman 11749
T131N,R105W,sec27, approx. NW 1/4PTRM V92002 : North Dakota - Slope 11749
T134N,R106W,sec24 , approx. SE 1/4- Ceratopsidae
- Hadrosaurinae
- Thescelosaurus neglectus
- Tyrannosaurus rex
- Saurornitholestes
- Paronychodon identifié comme Paronychodon lacustris
PTRM V95009 : North Dakota - Slope 11749
T134N,R106W,sec13, approx. NW 1/4PTRM V87009, Pretty Butte : North Dakota - Slope 11749
T134N,R106W,sec35, approx. SW 1/4PTRM V96016 : North Dakota - Bowman 11749
T132N,R105W,sec35, approx. SW 1/4PTRM V96006 : North Dakota - Bowman 11749
T132N,R105W,sec35, approx. SW 1/4PTRM V96005 : North Dakota - Bowman 11749
T132N,R105W,sec35, approx. SW 1/4PTRM V96004 : North Dakota - Bowman 11749
T132N,R105W,sec35, approx. SW 1/4PTRM V96003 : North Dakota - Bowman 11749
T132N,R105W,sec35, approx. SW 1/4PTRM V86003, Pretty Butte : North Dakota - Slope 11749
T134N,R106W,sec35, approx. SW 1/4- Ceratopsidae
- Hadrosaurinae
- Richardoestesia isosceles
- Ornithomimidae
- Tyrannosaurus rex
- Thescelosaurus neglectus
PTRM V98027, Cannonball Creek : North Dakota - Slope 11749
T134N,R106W,sec5, approx. center E- Ceratopsidae
- Hadrosaurinae
- Paronychodon identifié comme Paronychodon lacustris
PTRM V97002, Cannonball Creek : North Dakota - Slope 11749
T134N,R106W,sec5, approx. center NPTRM V97009, Cannonball Creek : North Dakota - Slope 11749
T134N,R106W,sec5, approx. center NPTRM V98003, Cannonball Creek : North Dakota - Slope 11749
T134N,R106W,sec4, approx. NW 1/4PTRM V96022, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec32, approx. centerPTRM V96021, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec32, approx. centerPTRM V95020, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec32, approx. centerPTRM V86002, East Marmarth : North Dakota - Slope 11749
T133N,R105W,sec17, approx. S center- Ceratopsidae
- Hadrosaurinae
- Richardoestesia isosceles
- Tyrannosaurus rex
- Paronychodon identifié comme Paronychodon lacustris
- Thescelosaurus neglectus
PTRM V87006, East Marmarth : North Dakota - Slope 11749
T133N,R105W,sec17, approx. center- Ceratopsidae
- Hadrosaurinae
- Caenagnathidae
- Tyrannosaurus rex
- Paronychodon identifié comme Paronychodon lacustris
- Saurornitholestes
PTRM V87004, East Marmarth : North Dakota - Slope 11749
T133N,R105W,sec17, approx. centerPTRM V92003, East Marmarth : North Dakota - Slope 11749
T133N,R105W,sec17, approx. centerPTRM V95014, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V95018, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V95016, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4- Ceratopsidae
- Richardoestesia isosceles
- Hadrosaurinae
- Tyrannosaurus rex
- Paronychodon identifié comme Paronychodon lacustris
PTRM V95017, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V98002, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V95023, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V95025, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V96015, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V96019, Cannonball Creek : North Dakota - Slope 11749
T135N,R106W,sec33, approx. SW 1/4PTRM V97011 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V97012 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V97013 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V97017 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V97024 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4- Ceratopsidae
- Caenagnathidae
- Coeluridae identifié comme Coelurosauridae indet.
- Ornithomimidae
- Tyrannosaurus rex
PTRM V98011 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V98015 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V98016 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V98017 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V98020 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V98021 : North Dakota - Slope 11749
T133N,R105W,sec5, approx. NW 1/4PTRM V92029, Doaks Butte : South Dakota - Harding 11749
2 miles south of Doaks Butte, NDPTRM V92027, Doaks Butte : South Dakota - Harding 11749
2 miles south of Doaks Butte, NDPTRM V92025, Doaks Butte : South Dakota - Harding 11749
2 miles south of Doaks Butte, ND- Ceratopsidae
- Richardoestesia isosceles
- Hadrosaurinae
- Caenagnathidae
- Ornithomimidae
- Tyrannosaurus rex
- Paronychodon identifié comme Paronychodon lacustris
- Thescelosaurus neglectus
PTRM V91014, Doaks Butte : South Dakota - Harding 11749
2 miles south of Doaks Butte, NDPTRM V91010, Doaks Butte : South Dakota - Harding 11749
2 miles south of Doaks Butte, NDeast side, Powder River drainage, CCM V03 : Montana - Powder River 11822 64040 71136
about 24 km S of Powderville, MT; E side along Powder River drainage. R1S, T53EStanding Rock Hadrosaur Site : South Dakota - Corson 23425 23444 80604 80623 80624 81555
in a 470-m long bluff along Grand River in Corson Co., 40 miles SE of Lemmon, SD and S of MorristownHarbicht Hill South No. 2, UCMP V-73100 : Montana - McCone 12772 93074
NE 1/4, SW 1/4, sec 32, T25N, R43E, McCone Co., MTWilliam Winkley Ranch, Powder Hill : Montana - Carter 12772 12773 93074
sec 17, T1S, R55E, William Winkley Ranch, Powder Hill, N of Ekalaka, Carter Co., MTKJ9239 (DMNH 517) : South Dakota - Harding 7941 78884 82296
McKenzie Butte 7.5', ca. 8 km NW of BuffaloSandy Site, KJ9536 (DMNH 1492) : South Dakota - Harding 7941 17033 44515 50440 76230 80623 81555
Chimney Butte 7.5'LACM V3152 : Montana - Garfield 12971 12974 14862 31494
NE 1/2, NW 1/4, sec 22, T21N, R42E (listed as R42N in text), Garfield Co., MT18 miles east of Lismas (AMNH) : Montana - Valley 12319 12623 12974
30 km/18 mi E of Lismas, MTMcCone County (USNM 10289) : Montana - McCone 12319
sec 28, T27N, R49E- Edmontosaurus annectens identifié comme Anatosaurus annectens
MPM 3956, Marmarth : North Dakota - Slope 13015 17021 93074
W 1/4, sec 8, T133N, R105W, Marmarth 7.5' Quad, Slope Co.Ugly Duckling, UCMP V-84159 : Montana - Garfield 13015 14263
Jennifer's Domehead, UCMP V-83049 : Montana - Garfield 13015 14263
Turtle City, UCMP V-88027 : Montana - Carter 13015
Big Dry East Quarry : Montana - Garfield 13071 17477 51520 54064 65122 77273
approximate location of Big Dry Post Office, now beneath Ft. Peck reservoir; E side of Big Dry Creek , 8 miles from John Willis Ranch, 25 miles S of LismasBig Dry Quarry : Montana - Garfield 13015 17477 46207 54064
approximate location of Big Dry Post Office, now beneath Ft. Peck reservoir; W side of Big Dry, 44 miles S of GlasgowSand Arroyo/ Prairie Elk Creek (AMNH) : Montana - McCone 12314 12319 13079
Sand Arroyo (Sand Creek), 16 miles SE of Lismas, MT. 4 mi E of the CK Ranch; also listed as in the badlands between Sand Creek and Prairie Elk (Creek)- Triceratops horridus
- Edmontosaurus identifié comme Anatosaurus sp.
Cattle Creek : Montana - Garfield 13466
on Cattle Creek, Garfield Co., MT; in E 1/2, NW 1/4, SW 1/4, sec 27, T22N, R39E.Coke's Pachy, UCMP V-88074 : Montana - Garfield 14263
Jason's Pachycephalosaur, UCMP V-86026 : Montana - Garfield 14263
Jump Off (ANSP) : South Dakota - Harding 14362 54256
10 mi E of Camp Crook, area known as the "Jump Off"Dave's Nose, UCMP V-83224 : Montana - Garfield 13600 82752
in a tributary of Hell Creek, on Norman Olson ranch, sec. 2, T20N, R37E; Maloney Hill quadrangle- Ceratopsidae identifié comme Ugrosaurus olsoni n. gen. n. sp.
western Carter County : Montana - Carter 12808 14450 52511 84704
SE ¼, Sec. 5, T1S, R55E, western Carter County. Blacktail Creek quad.Sand Creek, Carter County (CMNH 7541) : Montana - Carter 4205 7925 14112 14592
SE 1/4, sec 11, T4S, R61E; Sand Creek, Carter Co., MTSand Arroyo : Montana - ? 12623 54103 78884
Sandy/Sand Arroyo, 20 mi SE of Lismasnear head of Rock Creek : Montana - McCone 12623 54103
near head of Rock Creek, 25 mi SE of LismasHarley's Baby Triceratops, UCMP V-97006 : Montana - Garfield 14848 17308 36232
Jack's Bay 5, UCMP V-84186 : Montana - McCone 14848 27184 82751
vicinity of Jack's Point, Charles M. Russell Wildlife RefugeRuben's Triceratops, UCMP V-75046 : Montana - McCone 14848 82752
Bug Creek areasouth of Ft. Peck (LACM) : Montana - ? 14880
South of Ft. Peck Reservoir, NE 1/4, Sec. 36, T21N, R35E, Montana- Edmontosaurus annectens identifié comme Anatosaurus cf. annectens
Cook Ranch, Crooked Creek (AMNH) : Montana - ? 12319 12385 58850
on Cook's ranch near Crooked Creek, 130 miles NW of Miles City- Edmontosaurus identifié comme Anatosaurus sp.
Brownie Butte, Hell Creek : Montana - Garfield 12319
Site is approx. 1 km north of the butte- Edmontosaurus identifié comme Anatosaurus sp.
Fort Yates area : North Dakota - Sioux 15577
In the vicinity of Fort YatesDracorex type site : South Dakota - ? 19309
described only as "central South Dakota" - this is a proxy site locationMOR HC-147 : Montana - Dawson 16613 44515 86180
sec. 32, T16N, R56E- Citipes elegans identifié comme Elmisaurus elegans
Burpee Museum loc. K-12 : Montana - Carter 17309
Engdahl Ranch (LACM) : Montana - Garfield 10350 15218 17469 17477 64603
approx. T21N, R36E, sec 34, on the L. D. Engdahl Ranch; two adjacent quarriesGlendive badlands (AMNH) : Montana - ? 18611
in the badlands near Glendive, 50 ft above the railroad tracksHockett, Powder River (AMNH) : Montana - Custer 18611
on Powder River, 12 mi N of Hockett, S of Miles CityBear Creek/Rock Creek (UMMP) : Montana - McCone 820 12319 19146
along Bear Creek, 28-30 mi S and E of Ft. Peck - lited as sec 22, T29N, R43W in Lull & Wright 1942; approx. 24 mi SE of Ft. Peck, along a small tributary of Rock Creek in SE 1/4, sec 36, T23N, R43E, 1/4 mi W of Bonin shool house- Triceratops
- Edmontosaurus identifié comme Anatosaurus sp.
Billy Creek, CM Loc. 982 : Montana - Garfield 24421 46207 54744
from Billy Creek, MTSheep Mountain : Montana - Carter 24832
from private land in the drainage basin of the Little Missouri River, near Sheep Mountain, just W of Camp Crook, SDUniv. of Wisconsin site 2000-D (PROXY) : Montana - Carter 24832
from BLM land in the drainage basin of the Powder River, eastern Carter County; no specific info given, so location is a proxy set of coordinatesCrooked Creek (AMNH) : Montana - ? 12319 12549 24837 63664
Crooked Creek, 130 miles NW of Miles CityRuby Site, Haystack Butte : South Dakota - Butte 17477 24895 54013 81555 82296
Haystack Butte, NE Butte CountyBay Stud Coulee (UCMP V-96271) : Montana - Garfield 27184
Bay Stud CouleeCoyote Basin Trike (UCMP V-99216) : Montana - Garfield 27184
Coyote Basin, Garfield CountyCastle Butte (USNM) : Montana - Rosebud 1808 12319 12332 27970 68170
near Castle Buttle, 7 mi NW of Forsyth, MT- Edmontosaurus identifié comme Anatosaurus sp.
"Dakota" site, Sonsalia Ranch : North Dakota - Slope 28299 79669
W of Marmarth, on ranch belonging to Tyler Lyson's uncle, Mike SonsallaConor's Microsite (CM) : Montana - Garfield 28887
near Fort Peck Reservoir- Ceratopsidae
- Hadrosauridae
- Ankylosauridae
- Pachycephalosauridae
- Richardoestesia gilmorei
- Saurornitholestes langstoni
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
- Tyrannosauridae
UCMP V99370, Just Past Celeste's Microsite : Montana - Garfield 28887 46718
near Fort Peck Reservoir- Ceratopsidae
- Hadrosauridae
- Thescelosaurus
- Ankylosauridae
- Pachycephalosauridae
- Paronychodon identifié comme Paronychodon lacustris
- Richardoestesia isosceles
- Tyrannosauridae
- Dromaeosaurus albertensis
BMRP 2001.1 : Montana - Carter 29828
BMRP 2001.1 locality, western Carter CountyBMRP 2007.1 : Montana - Carter 29828
BMRP 2007.1 locality, western Carter CountyHomer Site (BMRP) : Montana - Custer 29831 81555
"Homer Site", 40 km SW of Ekalaka (30 km accordng to map); E margin of Powder River BasinNiemi Ranch : South Dakota - Harding 33794
on the Niemi Ranch, ca. 10 mi NNW of BuffaloChalk Buttes, near Powderville : Montana - Custer 12314 14442 34199 55599
"on the east fork of the Little Powder River" according to Knowlton 1909 (p. 204)
"Laramie deposits of Chalk Buttes, near Powderville, Custer County, Montana" according to Hay (1908, p. 229).- Triceratops horridus
- Hadrosauridae identifié comme Trachodon sp.
Quarry No. 3, Sieber Ranch (AMNH) : Montana - Garfield 12304 12314 13079 53938 62865
on Hell Creek, 130 mi NW of Miles City; 1 mi. S of camp on old Sieber Ranch. Brasley: "along the banks of a small stream, a tributary of the Missouri, about 135 miles northwest of Miles City, Montana"; "on the extreme point of the divide separating Hell Creek from a tributary which entered it from the west about 15 miles from the Missouri River."High Ceratopsian, UCMP V88001 : Montana - McCone 36232 82752
S part of a local basin NW of McGuire Creek, McCone County, in the Charles M. Russell Wildlife Refuge. Coordinates for McGuire Creek.Russell Basin Triceratops, UCMP V88081 : Montana - McCone 36232 82752
in Russell Basin, near Bug Creek (coordinates from latter)Sierra Skull, Nelson Creek : Montana - McCone 36232
found near Nelson CreekTurtle Graveyard locality : North Dakota - Slope 39183 39184
The Turtle Graveyard Locality is located in Bucklin Township, Slope County, near Marmarth, North Dakota. Used Google Earth centroid for Bucklin, ND.Gunma Triceratops site : South Dakota - Harding 40484
Hell Creek (AMNH general) : Montana - Garfield 12319 14442 51977
12 miles south of Missouri River, on Hell Creek, 130 miles west of Miles City- Edmontosaurus identifié comme Anatosaurus sp.
Brachychampsa locality (UCMP loc. V.86049) : North Dakota - Slope 820 42536 44026
UCMP locality V86049, sec. 14, T. 134 N., R. 106 W., Slope County, North Dakota.Conning Tower W1, UCMP loc. V.86050 : North Dakota - Slope County 42536
Conning Tower 1, UCMP loc. V.86051 : North Dakota - Slope County 42536
Waterline, UCMP loc. V86063 : North Dakota - Slope County 42536
Conning Tower N1, UCMP loc. V.86065 : North Dakota - Slope County 42536
Hay Creek N1, UCMP loc. V.86071 : North Dakota - Slope County 42536
Hay Creek N2, UCMP loc. V.86072 : North Dakota - Slope County 42536
Hay Creek N3, UCMP loc. V.86073 : North Dakota - Slope County 42536
Hay Creek N4, UCMP loc. V.86074 : North Dakota - Slope County 42536
Luten's Bonebed UCMP loc. V86075 : North Dakota - Slope County 42536
River Ford, UCMP loc. V.86076 : North Dakota - Slope County 42536
Pretty Butte, UCMP loc. V.86095 : North Dakota - Slope 42536
Based on locality 24851Pretty Butte 2, UCMP loc. V.86096 : North Dakota - Slope 42536
Based on locality 24851Too Weathered, UCMP loc. V.86097 : North Dakota - Slope County 42536
Cut Butte, UCMP loc. V.86099 : North Dakota - Slope County 42536
Sandy Overlook, UCMP loc. V86101 : North Dakota - Slope County 42536
Hay Creek N5, UCMP loc. V.98035 : North Dakota - Slope County 42536
Big Turtle Cove locality : North Dakota - Slope 46025 66240
"Big Turtle Cove locality, Slope County, North Dakota", no further data givenHell Creek (CM general) : Montana - Garfield 12314 12319 46207 53185
near Hell Creek, locality unspecified- Edmontosaurus identifié comme Anatosaurus sp.
- Triceratops horridus
Cannonball River mouth : North Dakota - Slope 46255
a few mi N of the mouth of the Cannonball River, on the Missouri R.- Ceratopsia
- Hadrosauridae identifié comme Trachodon sp.
1 mile west of Myers (122 ft) : Montana - Treasure 46255
1 mile W of Myers1 mile west of Myers (222 ft) : Montana - Treasure 46255
1 mile W of Myers1 mile west of Myers (261.5 ft) : Montana - Treasure 46255
1 mile W of Myersbutte southwest of Myers (371.5 ft) : Montana - Treasure 46255
one of the highest buttes SW of Myers- Ceratopsia
- Hadrosauridae identifié comme Trachodon sp.
- Ornithomimus
Celeste's Magnificent Microsite : Montana - Garfield 46719 82752
45 km southwest of Jordan (NCD01) : Montana - Garfield County 49049 60215 76231 87489 93074
Approximately 45 km southwest of the town of Jordan, Garfield County, MT, USA. ROM 53665 from same deposit, but 0.6 km away5 km northwest of Marmarth (MRF) : North Dakota - Slope 50440
ca. 5 km NW of Marmarth, NDMOR HC-069, Wankel T-Rex : Montana - McCone 51520 82296 82752
island on S side of Fort Peck Lake, within the Charles M. Russell National Wildlife Refuge, McCone Co."Sue" site (PROXY) : South Dakota - ? 9243 16613 51520 54475 82296
area of Faith, on the Cheyenne River Indian Reservation (county unclear)west side, Dry Creek Road : Montana - Carter 52511
W side, Dry Creek Road, 0.2 mi. (0.32 km) N of its intersection with Powder River Road; T1S, R55E, listed as sec 17 but ref suggests it's actually sec 9.McKeever Ranch, Snow Point (LACM) : Montana - Garfield 53020
general collections from McKeever Ranch on Snow Point, near Hell CreekSimpson Loc. 78 (reworked) : Montana - Wheatland 2914 3144
Crazy Mountain Basin; ca. 2 mi. NE of N end of Bear Butte, near sec. 26, T. 6 N., R. 16 ESMVP quarry, Maloney Hill : Montana - Garfield 56683
S 1/2, sec 3, T21N, R37E, Garfield Co.SMVP quarry 24, Trumbo Ranch : Montana - Garfield 56683 77273
SE 1/4, sec 31, T21N, R37E, Garfield Co., near Brownie Butte on Trumbo RanchDakotaraptor Quarry, Bone Butte : South Dakota - Harding 56882 81555
from a quarry near Bone Butte, in southern Harding County, S of Slim ButtesLane's Little Jaw Site : Montana - Powder River 61095
- Tyrannosaurus rex
- Pectinodon
- Paronychodon
- Dromaeosaurus
- Saurornitholestes
- Richardoestesia isosceles
- Triceratops
- Edmontosaurus
McGill 1 : Montana - Powder River 61095
Ninja Turtle locality : Montana - Carter 63480
Ninja Turtle locality is located in T1N, R55E near the town of Ekalaka, Carter County, southeastern MontanaRock Creek/Sand Arroyo (AMNH) : Montana - Garfield 63712 65452
badlands, near head of Rock Creek and Sand ArroyoYule, Little Missouri badlands : North Dakota - Slope 12314 46255 46330
near Yule, Little Missouri badlands, SW corner of North Dakota, orig. listed as Billings Co. but now Slope Co.Eureka Quarry anthills : South Dakota - Harding 66164
14 mi. SW of Buffalo, near top of Jump Off Bluffs, ca. 100 ft. downslope of Eureka Quarry- Paronychodon identifié comme Paronychodon lacustris
- Saurornithoides mongoliensis
- Troodon
- Chirostenotes
- Tyrannosaurus
- Theropoda
- Thescelosaurus neglectus
- Pachycephalosauridae
- Edmontosaurus identifié comme Anatosaurus sp.
- Triceratops
RAM locality V200029 (PROXY) : Montana - McCone 69212
RAM locality V200029, at an unspecified location in McCone CountyEl Scorpio (ES) : Montana - Carter 71129
El Scorpio (ES) site, NW Carter CountyMartin (MS) : Montana - Carter 71129
Martin (MS) site, NW Carter County, ca. 1.5 km SE of the ES siteZiebach Co. Triceratops (PROXY) : South Dakota - Ziebach 74875
from unspecified site in Ziebach Co. Mapped onto proxy site in Hell Creek outcropsMOR locality HC-557 : Montana - Garfield 75223
MOR locality HC-557 (“MSHC4”), located in the northern headwaters of Lone Tree Creek, south of Ft. Peck reservoir, near Jordan, Garfield County, MontanaMOR locality HC-379 (Bone Basin) : Montana - Garfield 75223
MOR locality HC-379 (“Bone Basin”), located between East Ried Coulee and Jasper Coulee, ~4 km (2.5 miles) east of the Hell Creek Marina Rd. (FWS-105), and ~2.5 km (1.5 miles) north of the new type section at Flag ButteMOR locality HC-783 (Ultramega Microsite) : Montana - Garfield 75223
MOR locality HC-783 (“Ultramega Microsite”), located ~35 km north of route 200 on the Haxby Road (secondary route 341), and ~1 km west of the Haxby RoadBDM locality 2015-FPG-027 (Mono Claw Microsite) : Montana - Valley 75223
BDM locality 2015-FPG-027 (“Mono Claw Microsite”), located in the northern headwaters of Sutherland Creek, Valley County, northern MontanaBDM locality 2015-FPG-030 (Lousy Microsite) : Montana - Valley 75223
locality 2015-FPG-030 (“Lousy Microsite”), located in the northern headwaters of Willow Creek, Valley County, northern MontanaMOR locality HC-064 : Montana - Dawson 75227
MOR locality HC-064 in the collections of Makoshika State Park, near Glendive, geographic quadrant Township 15N and Range 56E Section 08, Dawson County, eastern MontanaDDM-18-339 : Montana - Carter 75227
Approximately 24 km southwest of Ekalaka, Carter County, southeast Montanaprivate ranch near Glendive : Montana - Dawson 75378
private ranch, approx. 1 mile area around E 1/2 of the SW 1/4 of the NE 1/4 Section 14, T. 15 N., R. 56 E., Dawson County, Glendive, MTSMVP quarry 11, Trumbo Ranch : Montana - Garfield 77273
T21N, R37E, Garfield Co.SMVP quarry 14, Trumbo Ranch : Montana - Garfield 77273
S1/2, sec 3, T21N, R37E, Garfield Co.SMVP quarry 19, Trumbo Ranch : Montana - Garfield 77273
T21N, R37E, Garfield Co., near Flagg Butte on Trumbo RanchStovall Quarry, Trumbo Ranch : Montana - Garfield 77273
T21N, R37E, Garfield Co."Willow" site, Harding County (PROXY) : South Dakota - Harding 31494 77898 77899
described only as from "Harding County, northwestern South Dakota, USA"Duffy T-rex site : South Dakota - Harding 78884 82296
ca. 8 km NW of BuffaloPeck's Rex site (PROXY) : Montana - McCone 78886 82296
former Walton Ranch, east of Fort Peck LakeBinion Ranch, LACM Loc. 7233 : Montana - Garfield 79651
on Binion Ranch, near the town of Jordan in Garfield County, central-eastern Montana; Maloney Hill quadrant, SE 1/4 of NE 1/4 Sect. 5; Township 20 N; Range 38 ERuth Mason Dinosaur Quarry : South Dakota - Meade 80623 81555
Ruth Mason Dinosaur Quarry, on the Ruth Mason ranch, near Faith, SDTooth Draw Quarry (TD), Deer's Ears Butte : South Dakota - Butte 80625 81555
original Tooth Draw Quarry extended/correlated with nearby exposures: Tooth Draw West (TDW) and Tooth Draw Site B (= Becca's Tooth Draw); in Deer's Ears Butte area
- Coordinates provided in Fig. 20.- Tyrannosaurus rex
- Tyrannosaurus rex
- Ornithomimus
- Anzu wyliei
- Dakotaraptor steini
- Acheroraptor temertyorum
- Saurornitholestes
- Richardoestesia
- Dromaeosauridae
- Troodon
- Albertonykus
- Pectinodon bakkeri
- Paronychodon
- Theropoda
- Edmontosaurus annectens
- Triceratops
- Torosaurus
- Leptoceratops
- Pachycephalosaurus
- Pachycephalosaurus wyomingensis
- Thescelosaurus neglectus
- Edmontonia identifié comme Denversaurus schlessmanni
- Ankylosaurus magniventris
- Ornithischia
Triceratops Quarry, Licking Ranch : South Dakota - Butte 80625
ca. 2 mi. E of Tooth Draw Quarry, on the Licking RanchLarson Site, TD-9 (BHI) : South Dakota - Butte 80625
7-8 m above Tooth Draw QuarryEnigma Site (RB-02:ENS) : South Dakota - Butte 80625
in Ruthie's Badlands, ca. 2 km E of Deer's Ears ButteLGD Triceratops (RB-19) : South Dakota - Butte 80625
in Ruthie's Badlands, ca. 2 km E of Deer's Ears ButteRuthie Triceratops (RB-33) : South Dakota - Butte 80625
in Ruthie's Badlands, ca. 2 km E of Deer's Ears ButteDEW-22 Ornithomimid : South Dakota - Butte 80625
on W side of Deer's Ears Butte, includes DEW-22N and DEW-22SOTS Triceratops (SK-9) : South Dakota - Butte 80625
OTS Triceratops (SK-9), at Splinter's Knob, W side of Deer's Ears Butte1975-BDM-01 : North Dakota - Slope 81027
Northwest of Marmarth in Slope County, North Dakota (locality 1975-BDM-01)Dry Creek [AMNH] : Montana - Dawson 14596 81410
along Dry Creek, Dawson Co."Miss Rene" Triceratops site [PROXY] : South Dakota - Meade 81555
unspecified locality in the badlands of Meade CountyDarnell Triceratops site, main bonebed : Wyoming - Weston 81555 81556
on the Darnell Ranch, SW of NewcastleDarnell Triceratops site, site B : Wyoming - Weston 81556
on the Darnell Ranch, SW of NewcastleTriceratops quarry, Mud Butte Ranch : South Dakota - Perkins 81831
Mud Butte Ranch, SW Perkins County, 36 miles NE of Newell, South Dakota. GPS coordinates: 45° 03’ 11.26” N, 102° 52’ 50.582 W. north of Jordan (EMSP) [PROXY] : Montana - Garfield 82646
N or Jordan, MTMOR locality HC-430 : Montana - Garfield 82750
Quittin' Time locality (includes two other adjacent quarries, Big Ass Bones and JSaur) from the same bonebed; N of Lone Tree Creek near Fort Peck LakeQuarry No. 2, Sieber Ranch (AMNH) : Montana - Garfield 12304
on Hell Creek, 130 mi NW of Miles City; Near camp on old Sieber Ranch.MOR locality HC-517 : Montana - Garfield 84639
MOR Locality HC-517, on the Charles M. Russell National Wildlife Refuge in Garfield County, northeastern MontanaEoneophron holotype site [PROXY] : South Dakota - Meade 87400
unspecified locality in the badlands of Meade CountySUP 9713, Jordan : Montana - Garfield 90690
near Jordan; sec. 2, T20N, R37EPowder River Basin (unspecific) : Montana - Carter 91309
"Powder River Basin, northwestern Carter County, Montana, U.S.A. Exact coordinates for the location are on file in the paleontology collections at the Burpee Museum of Natural History" - Thomas et al. (2025)
Publication(s)
La base comprend 186 publication(s).
Source: The Paleobiology Database
- ↑1 2 B. Brown. 1908. The Ankylosauridae, a new family of armored dinosaurs from the Upper Cretaceous. Bulletin of the American Museum of Natural History 24(12):187-201 (https://doi.org/10.1007/bf01975763)
- ↑1 2 3 K. Carpenter. 2004. Redescription of Ankylosaurus magniventris Brown 1908 (Ankylosauridae) from the Upper Cretaceous of the Western Interior of North America. Canadian Journal of Earth Sciences 41:961-986 (https://doi.org/10.1139/e04-043)
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 R. S. Lull and N. E. Wright. 1942. Hadrosaurian dinosaurs of North America. Geological Society of America Special Paper 40:1-242 (https://doi.org/10.1130/spe40-p1)
- ↑1 C. W. Gilmore. 1910. Leidyosuchus sternbergii, a new species of crocodile from the Ceratops Beds of Wyoming. Proceedings of the United States National Museum 38(1762):485-502 (https://doi.org/10.5479/si.00963801.38-1762.485)
- ↑1 W. P. Coombs. 1978. The families of the ornithischian dinosaur order Ankylosauria. Palaeontology 21(1):143-170
- ↑1 E. Hennig. 1915. Fossilium Catalogus. I: Animalia. Pars 9: Stegosauria 1:1-16 (https://doi.org/10.1515/9783112609408)
- ↑1 2 V. M. Arbour and P. J. Currie. 2016. Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs. Journal of Systematic Palaeontology 14(5):385-444 (https://doi.org/10.1080/14772019.2015.1059985)
- ↑1 2 3 V. M. Arbour and J. C. Mallon. 2017. Unusual cranial and postcranial anatomy in the archetypal ankylosaur Ankylosaurus magniventris. Facets 2(2):764-794 (https://doi.org/10.1139/facets-2017-0063)
- ↑1 2 E. B. Giffin, D. L. Gabriel, and R. E. Johnson. 1988. A new pachycephalosaurid skull (Ornithischia) from the Cretaceous Hell Creek Formation of Montana. Journal of Vertebrate Paleontology 7(4):398-407 (https://doi.org/10.1080/02724634.1988.10011672)
- ↑1 R. M. Sullivan. 2003. Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae). Journal of Vertebrate Paleontology 23(1):181-207 (https://doi.org/10.1671/0272-4634(2003)23[181:rotdsl]2.0.co;2)
- ↑1 2 3 4 5 A. F. Wroblewski. 2024. Southernmost record of the pachycephalosaurine Stygimoloch spinifer and palaeobiogeography of latest Cretaceous North American dinosaurs. Lethaia 57(4):1–10 (https://doi.org/10.18261/let.57.4.7)
- ↑1 2 R. Estes. 1965. A new fossil salamander from Montana and Wyoming. Copeia 1965(1):90-95 (https://doi.org/10.2307/1441245)
- ↑1 E. S. Gaffney. 1972. The systematics of the North American family Baenidae (Reptilia, Cryptodira). Bulletin of the American Museum of Natural History 147(5):245-312
- ↑1 2 R. Estes, P. Berberian, and C. A. M. Meszoely. 1969. Lower vertebrates from the Late Cretaceous Hell Creek Formation, McCone County, Montana. Breviora 337:1-33
- ↑1 2 P. M. Galton. 1995. The species of the basal hypsilophodontid dinosaur Thescelosaurus Gilmore (Ornithischia: Ornithopoda) from the Late Cretaceous of North America. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 198(3):297-311 (https://doi.org/10.1127/njgpa/198/1995/297)
- ↑1 J. D. Gardner. 2000. Albanerpetontid amphibians from the Upper Cretaceous (Campanian and Maastrichtian) of North America. Geodiversitas 22(3):349-388
- ↑1 2 R. E. Sloan. 1976. The ecology of dinosaur extinction. Athlon: Essays on Palaeontology in Honor of Loris Shano Russell. Royal Ontario Museum, Life Sciences Miscellaneous Publications
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 D. L. Lofgren. 1995. The Bug Creek problem and the Cretaceous-Tertiary transition at McGuire Creek, Montana. University of California Publications in Geological Sciences 140:1-185
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 M. T. Carrano. 2005. Fossil Vertebrate Collections, University of California Museum of Paleontology
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 D. W. Larson and P. J. Currie. 2013. Multivariate analyses of small theropod dinosaur teeth and implications for paleoecological turnover through time. PLoS ONE 8(1):e54329:1-14 (https://doi.org/10.1371/journal.pone.0054329)
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286 (https://doi.org/10.1016/0195-6671(83)90052-6)
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 L. J. Bryant. 1989. Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana. University of California Publications in Geological Sciences 134:1-107
- ↑1 2 3 4 5 6 7 8 9 10 M. T. Carrano. 2025. Taxonomic opinions on the Dinosauria.
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 J. T. Sankey. 2008. Diversity of latest Cretaceous (late Maastrichtian) small theropods and birds: teeth from the Lance and Hell Creek formations, USA. Vertebrate Microfossil Assemblages: Their Role in Paleoecology and Paleobiogeography. Indiana University Press, Bloomington
- ↑1 2 3 4 5 6 7 8 9 10 11 L. J. Bryant. 1988. A new genus and species of Amiidae (Holostei; Osteichthyes) from the Late Cretaceous of North America, with comments on the phylogeny of the Amiidae. Journal of Vertebrate Paleontology 7(4):349-361 (https://doi.org/10.1080/02724634.1988.10011669)
- ↑1 2 3 4 R. E. Sloan and L. Van Valen. 1965. Cretaceous mammals from Montana. Science 148(3667):220-227 (https://doi.org/10.1126/science.148.3667.220)
- ↑1 2 3 J. D. Archibald and W. A. Clemens. 1984. Mammal evolution near the Cretaceous-Tertiary Boundary. Catastrophes and Earth History: The New Uniformitarianism (https://doi.org/10.1515/9781400853281.339)
- ↑1 R. C. Fox. 1989. The Wounded Knee local fauna and mammalian evolution near the Cretaceous-Tertiary boundary, Saskatchewan, Canada. Palaeontographica Abteilung A 208(1-3):11-59
- ↑1 S. Hope. 2002. The Mesozoic radiation of Neornithes. Mesozoic Birds: Above the Heads of Dinosaurs. University of California Press, Berkeley
- ↑1 2 3 K. Carpenter. 1982. Baby dinosaurs from the Late Cretaceous Lance and Hell Creek formations and a description of a new species of theropod. Contributions to Geology, University of Wyoming 20(2):123-134
- ↑1 2 3 4 M. T. Greenwald. 1971. The Lower Vertebrates of the Hell Creek Formation, Harding County, South Dakota.
- ↑1 2 D. Gabriel and C. Lupton. 1980. Dig-a-Dinosaur. Lore 30(2):24-30
- ↑1 2 S. L. Donohue, G. P. Wilson, and B. H. Breithaupt. 2013. Latest Cretaceous multituberculates of the Black Butte Station local fauna (Lance Formation, southwestern Wyoming), with implications for compositional differences among mammalian local faunas of the Western Interior. Journal of Vertebrate Paleontology 33(3):677-695 (https://doi.org/10.1080/02724634.2013.745416)
- ↑1 2 J. P. Hunter and D. A. Pearson. 1996. First record of Lancian (Late Cretaceous) mammals from the Hell Creek Formation of southwestern North Dakota, USA. Cretaceous Research 17 (https://doi.org/10.1006/cres.1996.0034)
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 D. A. Pearson, T. Schaefer, and K. R. Johnson, D. J. Nichols, J. P. Hunter. 2002. Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota. The Hell Creek Formation and the Cretaceous-Tertiary Boundary in the Northern Great Plains: An Integrated Continental Record of the End of the Cretaceous, Geological Society of America Special Paper 361:145-167 (https://doi.org/10.1130/0-8137-2361-2.145)
- ↑1 J. R. Hutchinson and L. M. Chiappe. 1998. The first known alvarezsaurid (Theropoda: Aves) from North America. Journal of Vertebrate Paleontology 18(3):447-450 (https://doi.org/10.1080/02724634.1998.10011073)
- ↑1 M. Wosik, M. B. Goodwin, and D. C. Evans. 2018. A nestling-sized skeleton of Edmontosaurus (Ornithischia, Hadrosauridae) from the Hell Creek Formation of northeastern Montana, U.S.A., with an analysis of ontogenetic limb allometry. Journal of Vertebrate Paleontology (e1398168):1-19 (https://doi.org/10.1080/02724634.2017.1398168)
- ↑1 2 3 4 5 6 7 8 9 10 11 D. W. Fowler, J. P. Wilson, and E. A. Freedman Fowler, C. R. Noto, D. Anduza, J. R. Horner. 2020. Trierarchuncus prairiensis gen. et sp. nov., the last alvarezsaurid: Hell Creek Formation (uppermost Maastrichtian), Montana. Cretaceous Research 116:104560 (https://doi.org/10.1016/j.cretres.2020.104560)
- ↑1 2 3 4 5 6 7 J. B. Scannella and D. W. Fowler. 2014. A stratigraphic survey of Triceratops localities in the Hell Creek Formation, northeastern Montana (2006–2010). Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas. Geological Society of America Special Paper 503:313-332 (https://doi.org/10.1130/2014.2503(12))
- ↑1 2 3 4 J. W. Hoganson, J. M. Campbell, and E. C. Murphy. 1994. Stratigraphy and paleontology of the Cretaceous Hell Creek Formation, Stumpf site, Morton County, North Dakota. Proceedings of the North Dakota Academy of Sciences 48:95
- ↑1 2 3 4 5 P. V. Ullmann, A. Shaw, and R. Nellermoe, K. J. Lacovara. 2017. Taphonomy of the Standing Rock Hadrosaur Site, Corson County, South Dakota. Palaios 32:779-796 (https://doi.org/10.2110/palo.2017.060)
- ↑1 2 C. Lupton, D. Gabriel, and R. M. West. 1980. Paleobiology and depositional setting of a Late Cretaceous vertebrate locality, Hell Creek Formation, McCone County, Montana. Contributions to Geology, University of Wyoming 18(2):117-126
- ↑1 2 E. D. Cope. 1883. The structure and appearance of a Laramie dinosaurian. American Naturalist 17:774-777
- ↑1 2 H. F. Osborn. 1912. Integument of the iguanodont dinosaur Trachodon. Memoirs of the American Museum of Natural History. New Series 1(2):35-544
- ↑1 2 R. Chapman and M. K. Brett-Surman. 1990. Morphometric observations on hadrosaurid ornithopods. In K. Carpenter and P. J. Currie (eds.), Dinosaur Systematics: Perspectives and Approaches, Cambridge University Press, Cambridge (https://doi.org/10.1017/cbo9780511608377.015)
- ↑1 2 W. D. Matthew. 1915. Dinosaurs, with Special Reference to the American Museum Collections. American Museum of Natural History, New York
- ↑1 2 H. F. Osborn. 1909. The Upper Cretaceous iguanodont dinosaurs. Nature 81:160-162 (https://doi.org/10.1038/081160a0)
- ↑1 D. B. Weishampel and J. B. Weishampel. 1983. Annotated localities of ornithopod dinosaurs: implications to Mesozoic paleobiogeography. The Mosasaur 1:43-87
- ↑1 E. D. Cope. 1884. On the structure of the skull in Diclonius mirabilis, a Laramie dinosaurian. Proceedings of the American Association for the Advancement of Science 32:315-316
- ↑1 2 F. D. Holland, Jr. 1997. A North Dakota Triceratops skull. Contributions to Geology, University of Wyoming 32(1):37-50
- ↑1 2 3 4 5 6 H. F. Osborn. 1910. Department of Vertebrate Palaeontology. Forty-First Annual Report of the American Museum of Natural History for the Year 1909
- ↑1 B. Brown. 1933. A gigantic ceratopsian dinosaur, Triceratops maximus, new species. American Museum Novitates 649:1-9
- ↑1 2 3 4 5 6 R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175 (https://doi.org/10.5962/bhl.title.5716)
- ↑1 2 J. H. Ostrom and P. Wellnhofer. 1986. The Munich specimen of Triceratops with a revision of the genus. Zitteliana 14:111-158
- ↑1 2 R. E. Molnar. 1978. A new theropod dinosaur from the Upper Cretaceous of central Montana. Journal of Paleontology 52(1):73-82
- ↑1 T. M. Lehman and K. Carpenter. 1990. A partial skeleton of the tyrannosaurid dinosaur Aublysodon from the Upper Cretaceous of New Mexico. Journal of Paleontology 64(6):1026-1032 (https://doi.org/10.1017/s0022336000019843)
- ↑1 R. E. Molnar and K. Carpenter. 1989. The Jordan theropod (Maastrichtian, Montana, U.S.A.) referred to the genus Aublysodon. Géobios 22(4):445-454 (https://doi.org/10.1016/s0016-6995(89)80098-1)
- ↑1 2 G. S. Paul. 1988. Predatory Dinosaurs of the World. Simon & Schuster, New York
- ↑1 2 T. D. Carr and T. E. Williamson. 2004. Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America. Zoological Journal of the Linnean Society 142:479-523 (https://doi.org/10.1111/j.1096-3642.2004.00130.x)
- ↑1 2 3 4 5 6 J. R. Horner and D. Lessem. 1993. The Complete T. rex (https://doi.org/10.1093/nq/40-4-560)
- ↑1 M. Odano. 1978. Tyrannosaurus rex and the amateurs. Terra 17(2):16-23
- ↑1 2 J. W. Hoganson. 1997. Triceratops skull exhibited at North Dakota Heritage Center. North Dakota Geological Society Newsletter 24(1):24-25
- ↑1 2 R. Gould, R. Larson, and R. Nellermoe. 2003. An allometric study comparing metatarsal II's in Edmontosaurus from a low-diversity hadrosaur bone bed in Corson Co., S. D. Journal of Vertebrate Paleontology 23(3, suppl.):56A
- ↑1 R. Larson, R. Nellermoe, and R. Gould. 2003. A study of theropod teeth from a low-species-density hadrosaur bone bed in the lower Hell Creek Formation in Corson Co., S.D. Journal of Vertebrate Paleontology 23(3, suppl.):70A-71A
- ↑1 P. V. Ullmann, S. H. Pandhya, and R. Nellermoe. 2019. Patterns of soft tissue and cellular preservation in relation to fossil bone tissue structure and overburden depth at the Standing Rock Hadrosaur Site, Maastrichtian Hell Creek Formation, South Dakota, USA. Cretaceous Research 99:1-13 (https://doi.org/10.1016/j.cretres.2019.02.012)
- ↑1 P. V. Ullmann, D. E. Grandstaff, and R. D. Ash, K. J. Lacovara. 2020. Geochemical taphonomy of the Standing Rock Hadrosaur Site: exploring links between rare earth elements and cellular and soft tissue preservation. Geochimica et Cosmochimica Acta 269:223-237 (https://doi.org/10.1016/j.gca.2019.10.030)
- ↑1 2 3 4 5 6 7 8 9 10 11 W. W. Stein. 2019. Taking count: a census of dinosaur fossils recovered from the Hell Creek and Lance formations (Maastrichtian). The Journal of Paleontological Sciences JPS.C.2019:01:1-42
- ↑1 2 3 P. M. Galton and H.-D. Sues. 1983. New data on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America. Canadian Journal of Earth Sciences 20(3):462-472 (https://doi.org/10.1139/e83-043)
- ↑1 2 B. Brown and E. M. Schlaikjer. 1943. A study of the troödont dinosaurs with the description of a new genus and four new species. Bulletin of the American Museum of Natural History 82(5):115-150
- ↑1 2 3 4 5 G. J. Retallack. 1994. A pedotype approach to latest Cretaceous and earliest Tertiary paleosols in eastern Montana. Geological Society America Bulletin 106(11):1377-1397 (https://doi.org/10.1130/0016-7606(1994)106<1377:APATLC>2.3.CO;2)
- ↑1 2 3 K. R. Johnson. 2002. Megaflora of the Hell Creek and lower Fort Union Formations in the western Dakotas: Vegetational response to climate change, the Cretaceous-Tertiary boundary event, and rapid marine transgression. The Hell Creek Formation and the Cretaceous-Tertiary boundary in the northern Great Plains: An integrated continental record of the end of the Cretaceous. 361:329-391 (https://doi.org/10.1130/0-8137-2361-2.329)
- ↑1 2 3 4 5 6 G. S. Paul, W. S. Persons, and J. Van Raalte. 2022. The tyrant lizard king, queen and emperor: multiple lines of morphological and stratigraphic evidence support subtle evolution and probable speciation within the North American genus Tyrannosaurus. Evolutionary Biology 49(2):156-179 (https://doi.org/10.1007/s11692-022-09561-5)
- ↑1 D. A. Russell and M. Triebold. 1995. An associated skeleton of a large pachycephalosaur from the Hell Creek Formation. Journal of Vertebrate Paleontology 15(3, suppl.):51A
- ↑1 2 R. M. Sullivan, S. E. Jasinski, and M. P. A. Van Tomme. 2011. A new caenagnathid Ojoraptorsaurus boerei, n. gen., n. sp. (Dinosauria, Oviraptorosauria), from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico. Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin
- ↑1 2 3 M. C. Lamanna, H.-D. Sues, and E. R. Schachner, T. R. Lyson. 2014. A New large-bodied oviraptorosaurian theropod dinosaur from the latest Cretaceous of western North America. PLoS ONE 9(3):e92022:1-16 (https://doi.org/10.1371/journal.pone.0092022)
- ↑1 K. Tsujimura, M. Manabe, and Y. Chiba, T. Tsuihiji. 2021. Metatarsals of a large caenagnathid cf. Anzu wyliei (Theropoda: Oviraptorosauria) from the Hell Creek Formation in South Dakota, U.S.A. Canadian Journal of Earth Sciences (https://doi.org/10.1139/cjes-2020-0171)
- ↑1 2 W. J. Morris. 1976. Hypsilophodont dinosaurs: a new species and comments on their systematics. in Churcher, C.S. (ed.), Athlon: Essays in Honor of Loris Shano Russell. Royal Ontario Museum Special Publication
- ↑1 2 P. M. Galton. 1997. Cranial anatomy of the basal hypsilophodontid dinosaur Thescelosaurus neglectus Gilmore (Ornithischia: Ornithopoda) from the Upper Cretaceous of North America. Revue de Paléobiologie, Genève 16(1):231-258
- ↑1 2 C. A. Boyd, C. M. Brown, and R. D. Scheetz, J. A. Clarke. 2009. Taxonomic revision of the basal neornithischian taxa Thescelosaurus and Bugenasaura. Journal of Vertebrate Paleontology 29(3):758-770 (https://doi.org/10.1671/039.029.0328)
- ↑1 2 3 P. M. Galton. 1974. Notes on Thescelosaurus, a conservative ornithopod dinosaur from the Upper Cretaceous of North America, with comments on ornithopod classification. Journal of Paleontology 48(5):1048-1067
- ↑1 2 M. B. Goodwin and R. E. Johnson. 1995. A new skull of the pachycephalosaur Stygimoloch casts doubt on head butting behavior. Journal of Vertebrate Paleontology 15(3, suppl.):32A
- ↑1 2 3 4 5 6 M. B. Goodwin, E. A. Buccholtz, and R. E. Johnson. 1998. Cranial anatomy and diagnosis of Stygimoloch spinifer (Ornithischia: Pachycephalosauria) with comments on cranial display structures in agonistic behavior. Journal of Vertebrate Paleontology 18(2):363-375 (https://doi.org/10.1080/02724634.1998.10011064)
- ↑1 2 3 4 5 6 7 8 M. B. Goodwin. 1989. New occurrences of pachycephalosaurid dinosaurs from the Hell Creek Formation, Garfield County, Montana. Journal of Vertebrate Paleontology 9(3, suppl.):23A
- ↑1 2 3 4 H. F. Osborn. 1909. Extinct mammals, birds, reptiles and fishes. Fortieth Annual Report of the American Museum of Natural History for the Year 1908
- ↑1 H. F. Osborn. 1916. Skeletal adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus. Bulletin of the American Museum of Natural History 35(43):733-771
- ↑1 2 3 4 R. E. Molnar. 1991. The cranial morphology of Tyrannosaurus rex. Palaeontographica Abteilung A 217(4-6):137-176
- ↑1 E. Stromer. 1936. Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens. VII. Baharîje-Kessel und -Stufe mit deren Fauna und Flora. Eine ergänzende Zusammenfassung [Results of the expeditions of Professor E. Stromer in the Egyptian deserts. VII. Baharîje basin and layer with their fauna and flora. A complementary summary]. Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-naturwissenschaftliche Abteilung, Neue Folge 7:1-102
- ↑1 2 3 4 5 6 7 8 9 10 B. R. Erickson. 2017. History of the ceratopsian dinosaur Triceratops in the Science Museum of Minnesota, 1960–present. The Science Museum of Minnesota, Monograph (Paleontology) 12:1-37
- ↑1 2 3 J. S. McIntosh. 1981. Annotated catalogue of the dinosaurs (Reptilia, Archosauria) in the collections of the Carnegie Museum of Natural History. Bulletin of Carnegie Museum of Natural History 18:1-67 (https://doi.org/10.5962/p.228597)
- ↑1 2 3 H. F. Osborn. 1933. Mounted skeleton of Triceratops elatus. American Museum Novitates 654:1-14
- ↑1 2 W. L. Rohrer and R. Konizeski. 1960. On the occurrence of Edmontosaurus in the Hell Creek formation of Montana. Journal of Paleontology 34(3):464-466
- ↑1 2 E. H. Colbert and J. D. Bump. 1947. A skull of Torosaurus from South Dakota and a revision of the genus. Proceedings of the Academy of Natural Sciences of Philadelphia 99:93-106
- ↑1 Anonymous. 1948. The fossil skull of the horned dinosaur Torosaurus. Frontiers 12(3):91
- ↑1 2 E. A. CoBabe and D. E. Fastovsky. 1987. Ugrosaurus olsoni, a new ceratopsian (Reptilia: Ornithischia) from the Hell Creek Formation of eastern Montana. Journal of Paleontology 61(1):148-154 (https://doi.org/10.1017/s0022336000028298)
- ↑1 2 3 4 E. B. Giffin. 1989. Notes on pachycephalosaurs (Ornithischia). Journal of Paleontology 63(4):525-529 (https://doi.org/10.1017/s0022336000019739)
- ↑1 R. M. Sullivan. 2000. Prenocephale edmontonensis (Brown and Schlaikjer) new comb. and P. brevis (Lambe) new comb. (Dinosauria: Ornithischia: Pachycephalosauria) from the Upper Cretaceous of North America. New Mexico Museum of Natural History and Science Bulletin 17:177-190
- ↑1 T. E. Williamson and T. D. Carr. 2003. A new genus of derived pachycephalosaurian from western North America. Journal of Vertebrate Paleontology 22(4):779-801 (https://doi.org/10.1671/0272-4634(2002)022[0779:angodp]2.0.co;2)
- ↑1 D. C. Woodruff, M. B. Goodwin, and T. R. Lyson, D. C. Evans. 2021. Ontogeny and variation of the pachycephalosaurine dinosaur Sphaerotholus buchholtzae, and its systematics within the genus. Zoological Journal of the Linnean Society 193(2):563-601 (https://doi.org/10.1093/zoolinnean/zlaa179)
- ↑1 2 C. W. Gilmore. 1946. A new carnivorous dinosaur from the Lance Formation of Montana. Smithsonian Miscellaneous Collections 106(13):1-19
- ↑1 D. A. Russell. 1970. Tyrannosaurs from the Late Cretaceous of western Canada. National Museum of Natural Sciences, Publications in Paleontology 1:1-34 (https://doi.org/10.1139/e72-031)
- ↑1 R. T. Bakker, M. Williams, and P. J. Currie. 1988. Nanotyrannus, a new genus of pygmy tyrannosaur, from the latest Cretaceous of Montana. Hunteria 1(5):1-30
- ↑1 T. D. Carr. 1999. Craniofacial ontogeny in Tyrannosauridae (Dinosauria, Coelurosauria). Journal of Vertebrate Paleontology 19(3):497-520 (https://doi.org/10.1080/02724634.1999.10011161)
- ↑1 2 3 4 5 6 M. B. Goodwin and J. R. Horner. 1997. Morphological variation and ontogeny in the skull of Triceratops. Journal of Vertebrate Paleontology 17(3, suppl.):49A
- ↑1 M. B. Goodwin, W. A. Clemens, and J. R. Horner, K. Padian. 2006. The smallest known Triceratops skull: new observations on ceratopsid cranial anatomy and ontogeny. Journal of Vertebrate Paleontology 26(1):103-112 (https://doi.org/10.1671/0272-4634(2006)26[103:tsktsn]2.0.co;2)
- ↑1 2 3 4 5 6 7 M. B. Goodwin and J. R. Horner. 2010. Historical collecting bias and the fossil record of Triceratops in Montana. New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington
- ↑1 2 3 4 5 J. R. Horner and M. B. Goodwin. 2008. Ontogeny of canial epi-ossifications in Triceratops. Journal of Vertebrate Paleontology 28(1):134-144 (https://doi.org/10.1671/0272-4634(2008)28[134:ooceit]2.0.co;2)
- ↑1 M. B. Goodwin and J. R. Horner. 2014. Cranial morphology of a juvenile Triceratops skull from the Hell Creek Formation, McCone County, Montana, with comments on the fossil record of ontogenetically younger skulls. Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas. Geological Society of America Special Paper 503:333-347 (https://doi.org/10.1130/2014.2503(13))
- ↑1 2 W. J. Morris. 1970. Hadrosaurian dinosaur bills—morphology and function. Los Angeles County Museum Contributions in Science 193:1-14 (https://doi.org/10.5962/p.241180)
- ↑1 2 Anonymous. 1907. Department of Vertebrate Palaeontology; field expeditions of 1906. The American Museum Journal 7(1):6-8
- ↑1 2 E. Daeschler and A. R. Fiorillo. 1989. Rediscovery of fossil material at the Academy of Natural Sciences of Philadelphia from Edward Drinker Cope's 1893 expedition to the Dakotas. The Mosasaur 4:143-148
- ↑1 2 R. T. Bakker, R. M. Sullivan, and V. Porter, P. Larson, S. J. Saulsbury. 2006. Dracorex hogwartsia, n. gen., n. sp., a spiked, flat-headed pachycephalosaurid dinosaur from the Upper Cretaceous Hell Creek Formation of South Dakota. Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:331-345
- ↑1 2 3 D. J. Varricchio. 2001. Late Cretaceous oviraptorosaur (Theropoda) dinosaurs from Montana. D. H. Tanke and K. Carpenter (eds.), Mesozoic Vertebrate Life, Indiana University Press, Bloomington
- ↑1 G. F. Funston, P. J. Currie, and M. E. Burns. 2016. New elmisaurine specimens from North America and their relationship to the Mongolian Elmisaurus rarus. Acta Palaeontologica Polonica 61(1):159-173 (https://doi.org/10.4202/app.00129.2014)
- ↑1 2 M. D. Henderson and J. E. Peterson. 2006. An azhdarchid pterosaur cervical vertebra from the Hell Creek Formation (Maastrichtian) of southeastern Montana. Journal of Vertebrate Paleontology 26(1):192-195 (https://doi.org/10.1671/0272-4634(2006)26[192:aapcvf]2.0.co;2)
- ↑1 2 A. R. Tabrum. 1970. Comments on new tyrannosaurid material from Montana. 1970 Meeting of the Southern California Academy of Sciences. Bulletin of the Southern California Paleontological Society 2(6):6
- ↑1 R. E. Molnar. 1980. An albertosaur from the Hell Creek Formation of Montana. Journal of Paleontology 54(1):102-108
- ↑1 2 3 4 B. Brown. 1907. The Hell Creek Beds of the Upper Cretaceous of Montana: their relation to contiguous deposits, with faunal and floral lists and a discussion of their correlation. Bulletin of the American Museum of Natural History 23(33):823-845
- ↑1 J. S. Anderson. 1999. Occipital condyle in the ceratopsian Triceratops, with comments on body size variation. Contributions from the Museum of Paleontology, University of Michigan 30(8):215-231
- ↑1 2 W. P. Wall and P. M. Galton. 1979. Notes on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America, with comments on their status as ornithopods. Canadian Journal of Earth Sciences 16:1176-1186 (https://doi.org/10.1139/e79-104)
- ↑1 M. T. Carrano. 2015. Fossil Vertebrate Collections, Carnegie Museum of Natural History
- ↑1 2 3 4 C. J. Ott. 2007. Cranial anatomy and biogeography of the first Leptoceratops gracilis (Dinosauria: Ornithischia) specimens from the Hell Creek Formation, southeast Montana. Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs
- ↑1 2 Anonymous. 1905. Department of Vertebrate Paleontology. The American Museum Journal 5(1):9-11
- ↑1 2 P. S. Hill. 1983. Haystack Butte surrenders terrible lizard. American West 20(2):22-29
- ↑1 P. R. Bjork. 1985. Preliminary report on the Ruby Site bone bed, Upper Cretaceous South Dakota. Geological Society of America, Rocky Mountain Section, Abstracts with Programs 17(4):209
- ↑1 2 F. A. Lucas. 1900. Paleontological notes. Thespesius versus Claosaurus. A new locality for Thespesius. The dermal covering of Thespesius. The dentition of Basilosaurus cetoides. The hyoid of Basilosaurus. The cranial cavity of Basilosaurus. Science 12(308):809-810
- ↑1 J. B. Hatcher. 1901. Some new and little known fossil vertebrates. Annals of Carnegie Museum 1(1):128-144 (https://doi.org/10.5962/p.247228)
- ↑1 R. L. Moodie. 1926. Studies in paleopathology [second series, II]. Excess callus following fracture of the fore foot in a Cretaceous dinosaur. Annals of Medical History 8:73-77
- ↑1 J. Versluys. 1910. Streptostylie bei Dinosauriern, nebst Bemerkungen über die Verwandtschaft der Vögel und Dinosaurier [Streptostyly in dinosaurs, along with remarks on the relationship of birds and dinosaurs]. Zoologische Jahrbücher. Abteilung für Anatomie und Ontogenie der Tiere 30:175-260
- ↑1 2 J. W. Hoganson. 2008. Dakota: a mummified dinosaur. North Dakota Department of Mineral Resources Newsletter 35(2):1-3
- ↑1 V. Vajda, T. R. Lyson, and A. Bercovici, J. H. Doman, D. A. Pearson. 2013. A snapshot into the terrestrial ecosystem of an exceptionally well- preserved dinosaur (Hadrosauridae) from the Upper Cretaceous of North Dakota, USA. Cretaceous Research 46:114-122 (https://doi.org/10.1016/j.cretres.2013.08.010)
- ↑1 2 3 4 L. E. Wilson. 2008. Comparative taphonomy and paleoecological reconstruction of two microvertebrate accumulations from the Late Cretaceous Hell Creek Formation (Maastrichtian), eastern Montana. Palaios 23:289-297 (https://doi.org/10.2110/palo.2007.p07-006r)
- ↑1 2 3 4 T. E. Williamson, T. D. Carr, and S. A. Williams, K. Tremaine. 2009. Early ontogeny of pachycephalosaurine squamosals as revealed by juvenile specimens from the Hell Creek Formation, eastern Montana. Journal of Vertebrate Paleontology 29(1):291-294 (https://doi.org/10.1671/039.029.0111)
- ↑1 2 J. C. Mathews, S. L. Brusatte, and S. A. Williams, M. D. Henderson. 2009. The first Triceratops bonebed and its implications for gregarious behavior. Journal of Vertebrate Paleontology 29(1):286-290 (https://doi.org/10.1671/039.029.0126)
- ↑1 2 C. J. Ott and P. L. Larson. 2010. A new, small ceratopsian dinosaur from the latest Cretaceous Hell Creek Formation, northwest South Dakota, United States: a preliminary description. New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington
- ↑1 2 E. S. Riggs. 1906. The carapace and plastron of Basilemys sinuosus, a new fossil tortoise from the Laramie Beds of Montana. Field Columbia Museum Publication, Geological Series 2(7):249-256 (https://doi.org/10.5962/bhl.title.3563)
- ↑1 2 3 O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 (https://doi.org/10.5962/bhl.title.21745)
- ↑1 2 W. Brasley. 1903. A remarkable fossil discovery. Scientific American 89(5):87 (https://doi.org/10.1038/scientificamerican08011903-87)
- ↑1 2 3 J. B. Hatcher, O. C. Marsh, and R. S. Lull. 1907. The Ceratopsia. Monographs of the United States Geological Survey 49:1-198 (https://doi.org/10.5962/bhl.title.60500)
- ↑1 R. S. Lull. 1903. Skull of Triceratops serratus. Bulletin of the American Museum of Natural History 19:685-695
- ↑1 2 W. G. Joyce and T. R. Lyson. 2011. New material of Gilmoremys lancensis nov. comb. (Testudines: Trionychidae) from the Hell Creek Formation and the diagnosis of plastomenid turtles. Journal of Paleontology 5(3):422-459 (https://doi.org/10.1666/10-127.1)
- ↑1 T. R. Lyson and W. G. Joyce. 2009. A new species of Palatobaena (Testudines: Baenidae) and a maximum parsimony and Bayesian phylogenetic analysis of Baenidae. Journal of Paleontology 83(3):457-470 (https://doi.org/10.1666/08-172.1)
- ↑1 2 S.-i. Fujiwara and Y. Takakuwa. 2011. A sub-adult growth stage indicated in the degree of suture co-ossification in Triceratops. Bulletin of the Gunma Museum of Natural History 15:1-17
- ↑1 2 M. A. Norell, J. M. Clark, and J. H. Hutchison. 1994. The Late Cretaceous alligatoroid Brachychampsa montana (Crocodylia): new material and putative relationships. American Museum Novitates 3116:1-26
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 P. A. Holroyd and J. H. Hutchison. 2002. Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component. Geological Society of America Special Paper 361:177-190 (https://doi.org/10.1130/0-8137-2361-2.177)
- ↑1 2 N. S. Vitek. 2012. Giant fossil soft-shelled turtles of North America. Palaeontologia Electronica 15(1):13A (https://doi.org/10.26879/299)
- ↑1 Y. Rollot, T. R. Lyson, and W. G. Joyce. 2018. A Description of the Skull of Eubaena cephalica (Hay, 1904) and New Insights into the Cranial Circulation and Innervation of Baenid Turtles. Journal of Vertebrate Paleontology e1474886:1-11 (https://doi.org/10.1080/02724634.2018.1474886)
- ↑1 2 W. J. Holland. 1905. Section of Paleontology. Annual Report of the Director for the Year Ending March 31, 1905
- ↑1 2 3 4 5 6 7 8 9 10 11 T. W. Stanton. 1909. The age and stratigraphic relationships of the "Ceratops beds" of Wyoming and Montana. Proceedings of the Washington Academy of Sciences 11(3):239-293
- ↑1 2 D. G. DeMar, Jr. 2013. A new fossil salamander (Caudata, Proteidae) from the Upper Cretaceous (Maastrichtian) Hell Creek Formation, Montana, U.S.A. Journal of Vertebrate Paleontology 33(3):588-598
- ↑1 2 D. C. Evans, D. W. Larson, and P. J. Currie. 2013. A new dromaeosaurid (Dinosauria: Theropoda) with Asian affinities from the latest Cretaceous of North America. Naturwissenshaften 100:1041-1049 (https://doi.org/10.1007/s00114-013-1107-5)
- ↑1 M. B. Goodwin and D. C. Evans. 2016. The early expression of squamosal horns and parietal ornamentation confirmed by new end-stage juvenile Pachycephalosaurus fossils from the Upper Cretaceous Hell Creek Formation, Montana. Journal of Vertebrate Paleontology 36(2):e1078343:1-8 (https://doi.org/10.1080/02724634.2016.1078343)
- ↑1 T. M. Cullen, D. J. Simon, and E. K. C. Benner, D. C. Evans. 2020. Morphology and osteohistology of a large‐bodied caenagnathid (Theropoda, Oviraptorosauria) from the Hell Creek Formation (Montana): implications for size‐based classifications and growth reconstruction in theropods. Papers in Palaeontology (https://doi.org/10.1002/spp2.1302)
- ↑1 D. C. Woodruff, R. K. Schott, and D. C. Evans. 2023. Two new species of small-bodied pachycephalosaurine (Dinosauria, Marginocephalia) from the uppermost Cretaceous of North America suggest hidden diversity in well-sampled formations. Papers in Palaeontology 9(6):e1535 (https://doi.org/10.1002/spp2.1535)
- ↑1 P. J. Currie, S. J. Godfrey, and L. Nessov. 1994. New caenagnathid (Dinosauria, Theropoda) specimens from the Upper Cretaceous of North America and Asia. Canadian Journal of Earth Sciences 30(10-11):2255-2272 (https://doi.org/10.1139/e93-196)
- ↑1 K. Carpenter and M. Smith. 2001. Forelimb osteology and biomechanics of Tyrannosaurus rex. Mesozoic Vertebrate Life: New Research Inspired by the Paleontology of Philip J. Currie
- ↑1 2 J. R. MacDonald. 1966. The search for the king of the tyrant lizards. Los Angeles County Museum of Natural History Quarterly 4(3):18-22
- ↑1 2 G. G. Simpson. 1937. The Fort Union of the Crazy Mountain field, Montana and its mammalian faunas. Bulletin of the United States National Museum 169:1-287 (https://doi.org/10.5479/si.03629236.169.1)
- ↑1 A. E. Roberts. 1972. Cretaceous and early Tertiary depositional and tectonic history of the Livingston area, southwestern Montana. United States Geological Survey Professional Paper 526-C:1-120 (https://doi.org/10.3133/pp526c)
- ↑1 2 3 4 B. R. Erickson. 1966. Mounted skeleton of Triceratops prorsus in the Science Museum. Scientific Publications of the Science Museum of Minnesota, New Series 1(1):1-16
- ↑1 2 R. A. DePalma, D. A. Burnham, and L. D. Martin, P. L. Larson, R. T. Bakker. 2015. The first giant raptor (Theropoda: Dromaeosauridae) from the Hell Creek Formation. The University of Kansas Paleontological Contributions 14:1-16
- ↑1 2 3 4 T. S. Kelly. 2014. Preliminary report on the mammals form Lane's Little Jaw Site Quarry: a latest Cretaceous (earliest Puercan?) local fauna, Hell Creek Formation, southeastern Montana. Paludicola 10(1):50-91
- ↑1 2 W. G. Joyce, T. R. Lyson, and S. Williams. 2016. New cranial material of Gilmoremys lancensis (Testudines, Trionychidae) from the Hell Creek Formation of southeastern Montana, U.S.A. Journal of Vertebrate Paleontology 36(6):e1225748:1-10 (https://doi.org/10.1080/02724634.2016.1225748)
- ↑1 2 Anonymous. 1958. Triceratops at home 80,000,000 years ago—and in Birmingham today. The Illustrated London News 232(6197):439
- ↑1 Anonymous. 1958. Triceratops at Birmingham Museum. Museum Journal 58(1):16-17
- ↑1 2 F. H. Knowlton. 1909. The stratigraphic relations and paleontology of the "Hell Creek beds," Ceratops beds" and equivalents, and their reference to the Fort Union Formation. Proceedings of the Washington Academy of Sciences 11(3):179-238
- ↑1 2 A. A. Farke and E. Yip. 2019. A juvenile cf. Edmontosaurus annectens (Ornithischia, Hadrosauridae) femur documents a previously unreported intermediate growth stage for this taxon. Vertebrate Anatomy Morphology Palaeontology 7:59-67 (https://doi.org/10.18435/vamp29347)
- ↑1 2 3 4 J. E. Peterson, R. P. Scherer, and K. M. Huffman. 2011. Methods of microvertebrate sampling and their influences on taphonomic interpretations. Palaios 28(2):81-88 (https://doi.org/10.2110/palo.2010.p10-080r)
- ↑1 2 R. Sakagami and S. Kawabe. 2020. Endocranial anatomy of the ceratopsid dinosaur Triceratops and interpretations of sensory and motor function. PeerJ (https://doi.org/10.7717/peerj.9888)
- ↑1 2 3 4 W. J. Freimuth and J. P. Wilson. 2021. New manual unguals of Trierarchuncus prairiensis from the Hell Creek Formation, Montana, and the ontogenetic development of the functional alvarezsaurid hand claw. Cretaceous Research 119:104698 (https://doi.org/10.1016/j.cretres.2020.104698)
- ↑1 2 M. H. Armitage and K. L. Anderson. 2013. Soft sheets of fibrillar bone from a fossil of the supraorbital horn of the dinosaur Triceratops horridus. Acta Histochemica 115:603-608 (https://doi.org/10.1016/j.acthis.2013.01.001)
- ↑1 2 P. E. Fisher, D. A. Russell, and M. K. Stoskopf, R. E. Barrick, M. Hammer, A. A. Kuzmitz. 2000. Cardiovascular evidence for an intermediate or higher metabolism in an ornithischian dinosaur. Science 288:503-505 (https://doi.org/10.1126/science.288.5465.503)
- ↑1 T. P. Cleland, M. K. Stoskopf, and M. H. Schweitzer. 2011. Histological, chemical, and morphological reexamination of the "heart" of a small Late Cretaceous Thescelosaurus. Naturwissenschaften 98(3):203-211 (https://doi.org/10.1007/s00114-010-0760-1)
- ↑1 2 D. Roberts. 1998. Digging for dinosaur gold. Smithsonian 28(12):41-53
- ↑1 2 A. Prieto-Márquez. 2014. A juvenile Edmontosaurus from the late Maastrichtian (Cretaceous) of North America: Implications for ontogeny and phylogenetic inference in saurolophine dinosaurs. Cretaceous Research 50:282-303 (https://doi.org/10.1016/j.cretres.2014.05.003)
- ↑1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 W. W. Stein. 2021. The paleontology, geology and taphonomy of the Tooth Draw Deposit; Hell Creek Formation (Maastrictian), Butte County, South Dakota. The Journal of Paleontological Sciences JPS.C.21:0001:1-108
- ↑1 2 S. E. Jasinski, A. B. Heckert, and C. Sailar, A. J. Lichtig, S. G. Lucas, P. Dodson. 2022. A softshell turtle (Testudines: Trionychidae: Plastomeninae) from the uppermost Cretaceous (Maastrichtian) Hell Creek Formation, North Dakota, USA, with implications for the evolutionary relationships of plastomenines and other trionychids. Cretaceous Research 135:105172 (https://doi.org/10.1016/j.cretres.2022.105172)
- ↑1 2 K. Carpenter. 2000. Evidence of predatory behavior by carnivorous dinosaurs. Gaia 15:135-144
- ↑1 J. I. Canudo, P. Cruzado-Caballero, and M. Moreno-Azanza. 2005. Possible theropod predation evidence in hadrosaurid dinosaurs from the Upper Maastrichtian (Upper Cretaceous) of Arén (Huesca, Spain). Current Research in Vertebrate Palaeontolgy. 3rd Annual Meeting of the European Association of Vertebrate Palaeontologists (EAVP). Kaupia 14:9-13
- ↑1 2 3 4 D. Bastiaans, T. Trapman, and M. Guliker, P. Kaskes, A. S. Schulp. 2016. Multigenerational assemblage of Triceratops from the Newcastle area, Wyoming, USA - an in-depth analysis of cranial and post-cranial ontogenesis. Journal of Vertebrate Paleontology 36((supp.)):94
- ↑1 2 R. D. D'Anastasio, J. Cilli, and F. Bacchia, F. Fanti, G. Gobbo, L. Capasso. 2022. Histological and chemical diagnosis of a combat lesion in Triceratops. Scientific Reports 12(1):3941:1-8 (https://doi.org/10.1038/s41598-022-08033-2)
- ↑1 2 C. Campbell. 2002. One collector's trash is a paleontologist's treasure: re-excavation of a Triceratops sit near K/T boundary in Garfield County, Montana. Journal of Vertebrate Paleontology 22(3 (suppl.)):40A-41A
- ↑1 2 S. W. Keenan and J. B. Scannella. 2014. Paleobiological implications of a Triceratops bonebed from the Hell Creek Formation, Garfield County, northeastern Montana. Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas. Geological Society of America Special Paper 503:349-364 (https://doi.org/10.1130/2014.2503(14))
- ↑1 2 J. R. Horner, M. B. Goodwin, and D. C. Evans. 2023. A new pachycephalosaurid from the Hell Creek Formation, Garfield County, Montana, U.S.A. Journal of Vertebrate Paleontology 42(4):e2190369:1-14 (https://doi.org/10.1080/02724634.2023.2190369)
- ↑1 2 K. A. Atkins-Weltman, D. J. Simon, and H. N. Woodward, G. F. Funston, E. Snively . 2024. A new oviraptorosaur (Dinosauria: Theropoda) from the end-Maastrichtian Hell Creek Formation of North America. PLoS ONE 19:e0294901:1 (https://doi.org/10.1371/journal.pone.0294901)
- ↑1 2 J. W. Happ. 2010. New evidence regarding the structure and function of the horns in Triceratops (Dinosauria: Ceratopsidae). New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium
- ↑1 2 H. N. Thomas, D. W. E. Hone, and T. Gomes, J. E. Peterson. 2025. Infernodrakon hastacollis gen. et sp. nov., a new azhdarchid pterosaur from the Hell Creek Formation of Montana, and the pterosaur diversity of Maastrichtian North America. Journal of Vertebrate Paleontology (e2442476) (https://doi.org/10.1080/02724634.2024.2442476)
