Galerie d'images
Toutes les images de la base — taxons, formations et intervalles géologiques.
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3,067 image(s)
Nyana rooiwalensis
Pteranodon skull. From Abel, O. (1919). Die Stämme der Wirbeltiere.
Hintighernia edingerae (originally assigned to Ornithostoma sedgwicki) holotype specimen CAMSM B 54.406. Fig. 1. Left lateral view of Cambridge specimen J. c. 9. O., orbit; •SV.OC'.C'i?., supra-occipital crest ; OC, occiput. X about 4. Fig. 2. Occiput of same specimen above the foramen mag-num. /.?»., foramen magnum ; p.t.f., post-temporal fc ssai. X about ^. Fig. 3. Posterior view of skull of same specimen, Su.OC.CR., section of supra-occipital crest ; OC, occiput, x about .
Fig. 11. Coloborhynchinae comparative plate. A. Coloborhynchus clavirostris in anterior (A1), right lateral (A2), and palatal (A3) views. B. Aerodraco sedgwickii in anterior (B1), right lateral (B2), and palatal (B3) views. C. Uktenadactylus wadleighi in anterior (C1), right lateral (C2), and palatal (C3) views. D. Uktenadactylus rodriguesae. in anterior (D1), left lateral (mirrored, D2), and palatal (D3) views. E. Nicorhynchus capito (holotype) in anterior (E1), right lateral (E2), and palatal (E3) views. F. Nicorhynchus capito (referred specimen, originally designated as the holotype of Ornithocheirus reedi, now pre sumed lost from CAMSM collections) in anterior (F1) and right lateral (F2) views. G. Nicorhynchus cf. capito in anterior (G1) and left lateral (mirrored, G2). H. Nicorhynchus fluviferox (holotype) in anterior (H1), right lateral (H2), and palatal (H3) views. Dark grey represents depressions, lighter gray with lines represents bulbous projections, white represents alveoli. Scale bars 50 mm. Drawings by RVP
View of the badlands of the type locality for the North Horn Formation on North Horn Mountain.
Tongnanlong is a large mamenchisaurid sauropod dinosaur that lived in the Late Jurassic period of what is now China. Typical of mamenchisaurids, it had an extremely long neck, even by sauropod standards. Tongnanlong grew to approximately 25 m in length and weighed 20-30 t, making it one of the largest mamenchisaurids.
Jianchangopterus zhaoianus?, Beipiao Pterosaur Museum
Australian Mesozoic pterosaurs. A, Aussiedraco molnari (QM F10613; holotype) mandible in dorsal view. Scale = 1 cm. B, Mythunga camara (QM F18896; holotype) partial skull and mandible in left lateral view. Scale = 5 cm. C, Thapunngaka shawi (KK F494; holotype) mandible in left lateral view. Scale = 5 cm. D, Ferrodraco lentoni (AODF 0876; holotype [part]) partial skull and mandible in left lateral view. Scale = 5 cm.
Solitary tooth of a sauropod from Angeac-Charente in France. Based on its morphology, it is not from an unnamed titanosaur like other material from this site, but from an unnamed titanosauriform similar to Ligabuesaurus or Veneosaurus.
Restoration of Batyrosaurus rozhdestvenskyi from the Late Cretaceous of Kazakhstan
Skeletal reconstruction of Siamraptor suwati. Cranial elements were scaled to fit in with the holotype (surangular). Human size = 1.8 m. Scale bar = 1 m. Human silhouette has been added to the original image.
Skeletal reconstruction of Ahshislepelta minor, a small ankylosaur from the Late Cretaceous Kirtland Formation of New Mexico. While originally recovered as an ankylosaurid related to Gastonia, later analyses favored a nodosaurid position which this is based on. Based on the holotype SMP VP-1930, consisting of fragmentary shoulder, forelimb, and vertebral elements as well as several osteoderms. Unknown material filled in using Niobrarasaurus, Pawpawsaurus, Silvisaurus, Sauropelta, and Borealopelta. Total length is approximately 4.9 m through the centra. Notes: Osteoderm placement somewhat speculative, not all osteoderms and vertebral fragments are figured. References: Burns & Sullivan, 2011.
Strict reduced consensus at the genus level of the most parsimonious trees recovered following the phylogenetic analysis. The original dataset is based on the matrix and scorings of Zhang et al. 2019 (except for Irisosaurus) and includes 62 taxa for 364 characters. This reduced consensus displays 39 taxa. It is based on 2 MPTs of 1,300 steps each (CI = 0.33, RI = 0.69). Dashed lines mean that the exact age of the genus is uncertain. Clades: 1, Sauropodomorpha; 2, Plateosauridae; 3, Massopoda; 4, Massospondylidae; 5, Riojasauridae; 6, Sauropodiformes; 7, Lessemsauridae. Squares represent stem-based definitions, ellipses represent node-based definitions.
Wudingloong is the earliest diverging, and oldest sauropodomorph dinosaur known from East Asia. Typical of basal sauropodomorphs, or "prosauropods," it was a bipedal herbivore with a long neck. Wudingloong was a fairly small prosauropod at approximately 4 m in length, and weighing around 400 kg.
Restoration of Analong chuanjieensis, a sauropod dinosaur from the Middle Jurassic of China
(ESP_063206_1780) Iani Chaos - Mariagat modified image: NASA/JPL/University of Arizona - We ♥ Mars
Holotype (HMN MB.R.2455, Cervical vertebra) of Australodocus.
Figuras de abelisaurio y Lohuecotitan. Museo Paleontológico de Castilla-La Mancha (Cuenca)
Skeletal composite of the chilean titanosaur Atacamatitan chilensis. A fragmented sauropod known from the holotype SGO-PV-961, found in the Atacama Desert. The preserved elements consist of:[1] Right femur, the proximal end of a humerus, two dorsal vertebrae, posterior caudal vertebrae, dorsal ribs and a possibly fragmentary element of the sternum, other fragmented caudal vertebrae and indeterminate bones.[1] Due to the fragmented nature of the holotype, most cladistic analyzes exclude Atacamatitan. Nevertheless, in 2012, Rubilar-Rogers and Gutstein conducted a preliminary cladistic analysis which placed Atacamatitan within the Lithostrotia.[2] The original description lacks a lateral view for the humerus and femur, the lateral view for the humerus was based on Alamosaurus and Opisthocoelicaudia, since it shows resemblance with them. The lateral view of the femur is based on Mendozasaurus for the same reason. Color Key Known Unknown
Rhamphinion with Dilophosaurus in the background. While the pterosaur was identified as Dimorphodon by the artist, that genus is not known to have coexisted with Dilophosaurus, so the identity is here changed to its closest contemporary relative, which is possibly which was meant to begin with.
The hands of oviraptorosaurs, showing basal oviraptorosaurs (A-B), Caenagnathidae (C-G) and Oviraptoridae (H-R). Colors signify diagnostic attributes of each group, with blue representing caenagnathid features (1-7), red representing oviraptorid features (8-15), green representing “ingeniine” features (16-21), light orange representing other features (22-25) not evenly distributed among taxa, and violet representing features basal to or restricted to non-caenagnathoid oviraptorosaurs (26-31). See text for clarification. A, Protarchaeopteryx robusta, based on NGMC 2127; B, Caudipteryx sp., based on IVPP V12430; C, Anzu wyliei, based on CM 78000; D, Gigantoraptor erlianensis, based on LH V0011; E, Chirostenotes pergracilis, based on CMN 2367 and RTMP 1979.20.1; F, Hagryphus giganteus, based on UMNH VP 12765; G, Elmisaurus rarus, based on ZPAL MgD-I/98; H, Wulatelong gobiensis, based on IVPP V18409; I, Oviraptor philoceratops, based on AMNH FABR 6517; J, the Bayan Mandahu “oviraptorine,” IVPP V9608; K, the Zamyn Khondt “oviraptorid,” MPC-D 100/42; L, Citipati osmolskae, based on MPC-D 100/979; M, Conchoraptor gracilis, based on MPC-D 100/20; N, Khaan mckennai, based on MPC-D 100/1127; O, Machairasaurus leptonychus, based on IVPP V15979; P, Nemegtomaia barsboldi, based on MPC-D 107/15 and 107/16; Q, “Ingenia“ yanshini, based on MPC-D 100/30; R, Heyuannia huangi, based on HYMV1-2.
Skeletal cross-sections and ecological estimates for four cryptoclidid plesiosaurs: Tatenectes, Cryptoclidus, Muraenosaurus, and Abyssosaurus.
Spinosaurus aegyptiacus, a spinosaurid from the Middle Cretaceous of Egypt
Spinosaurus aegyptiacus, a spinosaurid from the Middle Cretaceous of Egypt
Terminación de réplicas de dinosaurios en el Museo Argentino Urquiza y Parque de Dinosaurios Rinconsaurus realizados por Fundación Nothos
Comptonatus is an iguanodontid ornithopod dinosaur that lived about 125 million years ago, in the Early Cretaceous of what is now Europe. It was a medium sized herbivore at about 7 m in length, and weighed around 1 t in body mass. Fossilized footprints found near the original specimen indicate that Comptonatus was likely a herding animal. Comparisons between Comptonatus and other iguanodontids that lived around the same time and region show a high rate of diversity. This indicates there may have been pressure for speedy evolutionary adaptation in the region, or perhaps a high volume of migration.
Rinconraptor is a medium-sized megaraptoran theropod dinosaur, growing to approximately 7 m in total body length. It was a bipedal carnivore with proportionately long arms, each ending in three long claws. An enigmatic group, Rinconraptor's discovery helped to reinforce the idea that megaraptorans were closely related to tyrannosaurs.
Dinosaur National Monument is a United States National Monument located on the southeast flank of the Uinta Mountains on the border between Colorado and Utah at the confluence of the Green and Yampa Rivers. Although most of the monument area is in Moffat County, Colorado, the Dinosaur Quarry is located in Utah just to the north of the town of Jensen, Utah. The nearest communities are Jensen, Utah, and Dinosaur, Colorado. The park contains over 800 paleontological sites and has fossils of dinosaurs including Allosaurus, Deinonychus, Abydosaurus (a nearly complete skull, lower jaws and first four neck vertebrae of the specimen DINO 16488 found here at the base of the Mussentuchit Member of the Cedar Mountain Formation is the holotype for the description) and various long-neck, long-tail sauropods. It was declared a National Monument on October 4, 1915. The rock layer enclosing the fossils is a sandstone and conglomerate bed of alluvial or river bed origin known as the Morrison Formation from the Jurassic Period some 150 million years old. The dinosaurs and other ancient animals were carried by the river system which eventually entombed their remains in Utah. The pile of sediments were later buried and lithified into solid rock. The layers of rock were later uplifted and tilted to their present angle by the mountain building forces that formed the Uintas during the Laramide orogeny. The relentless forces of erosion exposed the layers at the surface to be found by paleontologists. The dinosaur fossil beds (bone beds) were discovered in 1909 by Earl Douglass, a paleontologist working and collecting for the Carnegie Museum of Natural History. He and his crews excavated thousands of fossils and shipped them back to the museum in Pittsburgh, Pennsylvania for study and display. President Woodrow Wilson proclaimed the dinosaur beds as Dinosaur National Monument in 1915. The monument boundaries were expanded in 1938 from the original 80-acre (320,000 m2) tract surrounding the dinosaur quarry in Utah, to its present extent of over 200,000 acres (800 km²) in Utah and Colorado, encompassing the spectacular river canyons of the Green and Yampa. Though lesser-known than the fossil beds, the petroglyphs in Dinosaur National Monument are another treasure the monument holds. Due to problems with vandals, many of the sites are not listed on area maps. The "Wall of Bones" located within the Dinosaur Quarry building in the park consists of a steeply tilted (67° from horizontal) rock layer which contains hundreds of dinosaur fossils. The enclosing rock has been chipped away to reveal the fossil bones intact for public viewing. In July 2006, the Quarry Visitor Center was closed due to structural problems that since 1957 had plagued the building because it was built on unstable clay. The decision was made to build a new facility elsewhere in the monument to house the visitor center and administrative functions, making it easier to resolve the structural problems of the quarry building while still retaining a portion of the historic Mission 66 era exhibit hall. It was announced in April 2009 that Dinosaur National Monument would receive $13.1 million to refurbish and reopen the gallery as part of the Obama administration's $750 billion stimulus plan. The Park Service successfully rebuilt the Quarry Exhibit Hall, supporting its weight on 70-foot steel micropile columns that extend to the bedrock below the unstable clay. The Dinosaur Quarry was reopened in Fall 2011. en.wikipedia.org/wiki/Dinosaur_National_Monument en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_...
Recreación de Aragosaurus, Lourinhasaurus y Galvesaurus, los tres macronarios hallados en la Península Ibérica
Restoration of Zuoyunlong huangi from the Late Cretaceous of China
Californosaurus perrini, an ichthyosaur from the Late Triassic of North America, pencil drawing
Figure 7. Isasicursor santacrucensis gen. et sp. nov. Femur (MPM 21533a) in (A) anterior, (B) posterior, (C) lateral, (D) medial, (E) proximal and (F) distal views. Tibia (MPM 21525a) in (G) lateral, (H) medial, (I) anterior, (J) posterior, (K) proximal and (L) distal views. Abbreviations: cc, cnemial crest; fib, fibular facet; ff, flexor fossa; fh, femoral head; gt, greater trochanter; itg, intertrochanteric groove; lc, lateral condyle; lp, lateral process; mc, medial condyle. Scale bar: 10 cm.
Life restoration of the Triassic ichthyosaur Callawayia neoscapularis. Three specimens of this ichthyosaur are known, the holotype, ROM 41993, and two referred specimens, TMP 94.380.11 and 94.382.2. The skull is primarily based on ROM 41993, cross-checked against TMP 94.380.11 and TMP 94.382.2. The vertebral column is based primarily on TMP 94.382.2 as it is the most complete of these specimens, while the ribs were based on ROM 41993. The forelimbs were mainly based on those of ROM 41993, with TMP 94.380.11 used to determine their breadth. The hindlimbs were based on TMP 94.380.11, especially the more complete right hindlimb. ROM 41993 was cross-scaled with TMP 94.380.11 by the dimensions of the forelimb epipodials, which produced similar vertebral dimensions. The two TMP specimens were cross-scaled based on femoral length, also producing similar vertebral dimensions. Nicholls & Manabe (2001) stated that no wedge-shaped caudal centra supporting a tailbend were found and that there was no evidence of a bend being present, though considered that they might have existed in the gap in the preserved caudals. Since various other Triassic ichthyosaurs have since been found to have tail bends, one was illustrated here. A modest downturn of roughly 15° was illustrated, comparable to that in Guanlingsaurus, and the location of the bend within the gap in the preserved vertebrae matches well with the location of the bend in Guizhouichthyosaurus. References McGowan, C. (1994). "A new species of Shastasaurus (Reptilia: Ichthyosauria) from the Triassic of British Columbia: The most complete exemplar of the genus". Journal of Vertebrate Paleontology 14 (2): 168–179. DOI:10.1080/02724634.1994.10011550. Nicholls, E. L.; Manabe, M. (2001). "A new genus of ichthyosaur from the Late Triassic Pardonet Formation of British Columbia: Bridging the Triassic-Jurassic gap". Canadian Journal of Earth Sciences 38 (6): 983–1002. Ji, C.; Jiang, D.Y.; Hao, W.; Sun, Y. (2011). "True tailbend occurred in the Late Triassic: Evidence from ichthyosaur skeletons of South China". Acta Scientiarum Naturalium Universitatis Pekinensis 47 (2): 309–314. Shang, Q. H.; Li, C. (2009). "On the occurrence of the ichthyosaur Shastasaurus in the Guanling biota (Late Triassic), Guizhou, China". Vertebrata PalAsiatica 47 (3): 178–193.
Referred pedal elements of Kank australis. right pedal ungual of digit II-3 (MPM 21548-A), ventral (A and B), and medial (C-D) views. Abbreviations: cp, colateral pit; ft, flexor tubercle; mvc, medioventral crest; pdp, posterodorsal process; pvp, posteroventral process. Scale bar: 10 cm
A Thescelosaurus at the Burpee Museum of Natural History in Rockford, Illinois, USA. Size:12 feet in length, 3 ft tall at the hip Weight: 670 lbs when alive.
Dorsal vertebra of platecarpus, a cretaceous. Mosasaur from the Niobrara Chalk of Kansas etc. General Collections Keywords: prehistoric archaeology; Paleopathology; Moodie, Roy Lee
Ichthyosaur Skeleton, Platypterygius longmani, in The Museum and Art Gallery of the Northern Territory at Darwin.
The Canadian Fossil Discovery Centre in Morden boasts the largest collection of marine invertebrate fossils in Canada. Visitors to the museum not only get to see this collection, but can join a dig in search for more fossils at a 109-acre escarpment property. Photo credit: Robyn Hanson
Mounted skeleton of Anzu at Royal Ontario Museum
Representation of the moroccan plioplatecarpinae Khinjaria acuta
Representation of the moroccan plioplatecarpinae Khinjaria acuta
Figure 30. Dinosaur eggshells. (A-B, E) Fusioolithus sp. eggshell fragment (MPM 21543). A, external view; B, radial section; E, radial section showing the microstructure of the sample. (C-D, F) Prismatoolithidae eggshell fragment (MPM 21551) (C) external view; (D) radial section; (F) radial section under MEB showing three main structural layers: mammillary, prismatic and external. Abbreviations: CL, continuous layer; ML, mammillary layer. Scale bar 1 mm in A-E, 200 μm in F.
Infernogallus jamesi (ROM VP 65050). Photograph (a) and line drawing (b) of ROM VP 65050. c Skeletal reconstruction of Infernogallus jamesi based on ROM VP 65050 and other eucaenagnathines (shaded areas are preserved in ROM 65050). (d) Palaeohistological thin section of the femur of ROM VP 65050, showing lines of arrested growth (arrows) and an external fundamental system indicative of advanced age and skeletal maturity. cv cervical vertebrae, dv dorsal vertebrae, efs external fundamental system, fe femur, ga gastralia, hu humerus, il ilium, ma manus, pb pubis, pp plane-polarised light, sc scapulacoracoid, sk skull, tb tibia, xp cross-polarised light. Scale bars as indicated.
Kayrasaurus is a therizinosaurian dinosaur that lived during the Early Cretaceous period in what is now China. At an estimated 3.6 m in total body length, it is the largest therizinosaur known from the Jehol Biota. Like other therizinosaurs, Kayrasaurus was a bipedal herbivore with large curved claws on each hand.
A mollweide map of Earth 515 million years ago, overlayed by a black outline of present-day countries in their respective locations.
Oxfordian (Upper Jurassic) cyclic sediments at Péry-Reuchenette, near Tavannes, kanton Bern, Switzerland. Alternating layers are limestone (light, more competent) and marl/clay; dominant cycle is the 200.000 year-cycle.