Chasmosaurus

Description

Chasmosaurus (« lézard à ouverture ») est un genre éteint de dinosaures cératopsiens du Crétacé supérieur qui a vécu au Canada.

Information(s)

Source: The Paleobiology Database

Attibution: Lambe 1914¹⁷⁵⁴⁶
Statut: Valide
Nom commun: Reptile fendu
Longueur (en m): 10 to < 100
Largeur (en m): 1.0 to < 10
Hauteur (en m): 1.0 to < 10
Poids (en m): de 1000 kg à 3000 kg
Environnement de découverte: terrestrial
Mode de vie: terrestrial
Mode de locomotion: actively mobile
Vision: ?
Alimentation: herbivore
Mode de reprodution: oviparous, dispersal=direct/internal,mobile
Classification: Chasmosaurinae >> Ceratopsidae >> Ceratopsia >> Marginocephalia >> Cerapoda >> Genasauria >> Ornithischia >> Dinosauria
Période: Campanian (de -83.60 Ma à -72.20 Ma)

Espèce(s):
- Chasmosaurus belli (Valide)²⁵¹²⁷
- Chasmosaurus brevirostris (nomen dubium, voir Chasmosaurus)¹²³¹⁴
- Chasmosaurus kaiseni (nomen dubium, voir Chasmosaurus)⁹⁵⁵⁸
- Chasmosaurus russelli (Valide)¹⁸⁵⁹⁵
- Mojoceratops perifania (Synonyme subjectif de Chasmosaurus russelli)³³⁸⁷⁸
- Monoclonius canadensis (nomen dubium, voir Chasmosaurus)²⁵¹²⁷

Specimen(s):

Chasmosaurus russelli: N.M.C. No. 2280 - humerus
Chasmosaurus belli: N.M.C. No. 2245 - radius, ulna, humerus, fibula, tibia, femur
Chasmosaurus mariscalensis recombined as Agujaceratops mariscalensis: - ?
Détail des Spécimens

Autre(s) Taxon(s) trouvés dans la litterature:
- Chasmosaurus mariscalensis recombined as Agujaceratops mariscalensis
- Chasmosaurus irvinensis recombined as Vagaceratops irvinensis
- Chasmosaurus russelli
- Monoclonius canadensis n. nomen dubium Chasmosaurus
- Monoclonius belli n. recombined as Chasmosaurus belli
- Chasmosaurus brevirostris n. nomen dubium Chasmosaurus
- Chasmosaurus mariscalensis n. recombined as Agujaceratops mariscalensis
- Chasmosaurus kaiseni n. nomen dubium Chasmosaurus
- Chasmosaurus irvinensis n. recombined as Vagaceratops irvinensis
- Mojoceratops subjective synonym of Chasmosaurus
Découverte(s): 31 occcurrences
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- Canada
  - Alberta
    - ?
      - Formation ?
        Chasmosaurus: ? ¹⁴¹⁰¹
        Chasmosaurus identifié comme Monoclonius canadensis n. sp.: ? ²⁵¹²⁷
      - Formation Dinosaur Park
        Chasmosaurus: ? ⁵⁹²³
        Chasmosaurus: ? ⁷⁰⁵⁴⁹
        Chasmosaurus: ? ⁷⁷⁹³⁵
        Chasmosaurus: ? ⁷⁷⁹³⁵
        Chasmosaurus identifié comme Chasmosaurus brevirostris n. sp.: ? ¹²³¹⁴
        Chasmosaurus identifié comme cf. Mojoceratops sp.: ? ³³⁸⁷⁸
        Chasmosaurus belli: ? ¹²³¹⁴
        Chasmosaurus belli: ? ¹⁶⁹⁸²
        Chasmosaurus belli: ? ¹²³¹⁴
        Chasmosaurus belli: N.M.C. No. 2245: radius, ulna, humerus, fibula, tibia, femur ⁶²⁸⁸⁷
        Chasmosaurus belli: ? ¹²³¹⁴
        Chasmosaurus belli: ? ⁵⁰⁰⁰⁵
        Chasmosaurus belli identifié comme Monoclonius belli n. sp.: ? ²⁵¹²⁷
        Chasmosaurus russelli: ? ¹⁸⁵⁹⁵
        Chasmosaurus russelli: N.M.C. No. 2280: humerus ¹⁴¹⁰¹
        Chasmosaurus russelli: ? ⁷⁷⁹³⁵
        Chasmosaurus russelli identifié comme Mojoceratops perifania: ? ³³⁸⁷⁸
        Vagaceratops irvinensis identifié comme Chasmosaurus irvinensis: ? ⁶⁹⁷⁸
        Vagaceratops irvinensis identifié comme Chasmosaurus irvinensis n. sp.: ? ⁶⁹⁷⁸
        Vagaceratops irvinensis identifié comme Chasmosaurus irvinensis: ? ⁶⁹⁷⁸
      - Formation Oldman
        Chasmosaurus identifié comme Chasmosaurus kaiseni n. sp.: ? ⁹⁵⁵⁸
- Mexique
  - Chihuahua
    - ?
      - Formation Aguja
        Agujaceratops mariscalensis identifié comme Chasmosaurus mariscalensis: ? ⁸²⁶⁴¹
        Agujaceratops mariscalensis identifié comme cf. Chasmosaurus mariscalensis: ? ⁸²⁶⁸⁸
- États-Unis
  - Montana
    - Wheatland
      - Formation Judith River
        Chasmosaurus: ? ¹⁴⁸⁷
  - Texas
    - Brewster
      - Formation Aguja
        Agujaceratops mariscalensis identifié comme Chasmosaurus mariscalensis n. sp.: ? ¹⁴¹⁰⁷
        Agujaceratops mariscalensis identifié comme Chasmosaurus mariscalensis: ⁵⁶⁸⁴
        Agujaceratops mariscalensis identifié comme Chasmosaurus mariscalensis: ? ¹⁴¹⁰⁷
        Agujaceratops mariscalensis identifié comme Chasmosaurus mariscalensis: ? ¹⁴¹⁰⁷
        Agujaceratops mariscalensis identifié comme Chasmosaurus mariscalensis: ? ¹⁴¹⁰⁷
Historique des modifications:

Référence	Partie	Dimension (en cm)	Lieu de découverte	Commentaires
N.M.C. No. 2280	humerus	length: 546	Collection: RTMP Quarry 10, Little Sandhill Creek- Lieu: CA, Alberta,	21.5 inches
N.M.C. No. 2245	radius	length: 317	Collection: RTMP Quarry 37, Berry Creek- Lieu: CA, Alberta,	12.5 inches
N.M.C. No. 2245	ulna	length: 431	Collection: RTMP Quarry 37, Berry Creek- Lieu: CA, Alberta,	17 inches
N.M.C. No. 2245	humerus	length: 508	Collection: RTMP Quarry 37, Berry Creek- Lieu: CA, Alberta,	20 inches
N.M.C. No. 2245	fibula	length: 482	Collection: RTMP Quarry 37, Berry Creek- Lieu: CA, Alberta,	19 inches
N.M.C. No. 2245	tibia	length: 533	Collection: RTMP Quarry 37, Berry Creek- Lieu: CA, Alberta,	21 inches
N.M.C. No. 2245	femur	length: 749	Collection: RTMP Quarry 37, Berry Creek- Lieu: CA, Alberta,	29.5 inches
	fibula	width: 24, length: 334	Collection: WPA Quarry L1, Talley Mountain- Lieu: US, Texas, Brewster	width is a mean for three specimens
	tibia	width: 56, length: 437	Collection: WPA Quarry L1, Talley Mountain- Lieu: US, Texas, Brewster	width is a mean for 14 specimens
	femur	width: 54, length: 554	Collection: WPA Quarry L1, Talley Mountain- Lieu: US, Texas, Brewster	width is a mean for 17 specimens
	radius	width: 31, length: 286	Collection: WPA Quarry L1, Talley Mountain- Lieu: US, Texas, Brewster
	ulna	width: 54, length: 336	Collection: WPA Quarry L1, Talley Mountain- Lieu: US, Texas, Brewster	minimum width is a mean for three specimens
	humerus	width: 49, length: 430	Collection: WPA Quarry L1, Talley Mountain- Lieu: US, Texas, Brewster

Pas de modification récente.

Publication(s)

La base comprend 19 publication(s).

Source: The Paleobiology Database

↑¹L. M. Lambe. 1914. On Gryposaurus notabilis, a new genus and species of trachodont dinosaur from the Belly River Formation of Alberta, with a description of the skull of Chasmosaurus belli. The Ottawa Naturalist 27(11):145-155
↑^{1 2 3 4}L. M. Lambe. 1902. New genera and species from the Belly River Series (mid-Cretaceous). Geological Survey of Canada Contributions to Canadian Palaeontology 3(2):25-81
↑^{1 2 3 4 5}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}B. Brown. 1933. A new longhorned Belly River ceratopsian. American Museum Novitates 669:1-3
↑^{1 2}C. M. Sternberg. 1940. Ceratopsidae from Alberta. Journal of Paleontology 14(5):468-480
↑^{1 2 3}N. R. Longrich. 2010. Mojoceratops perifania, a new chasmosaurine ceratopsid from the late Campanian of western Canada. Journal of Paleontology 84(4):681-694 (https://doi.org/10.1666/09-114.1)
↑^{1 2}S. J. Godfrey and R. Holmes. 1995. Cranial morphology and systematics of Chasmosaurus (Dinosauria: Ceratopsidae) from the Upper Cretaceous of western Canada. Journal of Vertebrate Paleontology 15(4):726-742 (https://doi.org/10.1080/02724634.1995.10011258)
↑¹A. K. Behrensmeyer. 1994.
↑¹T. Konishi. 2015. Redescription of UALVP 40, an unusual specimen of Chasmosaurus Lambe, 1914 (Ceratopsidae: Chasmosaurinae) bearing long postorbital horns, and its implications for ontogeny and alpha taxonomy of the genus. Canadian Journal of Earth Sciences 52(8):608-619 (https://doi.org/10.1139/cjes-2014-0167)
↑^{1 2 3}J. A. Campbell, M. J. Ryan, and R. B. Holmes, C. J. Schröder-Adams. 2016. A re-evaluation of the chasmosaurine ceratopsid genus Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of western Canada. PLoS ONE 11(1):e0145805:1-39 (https://doi.org/10.1371/journal.pone.0145805)
↑¹P. J. Currie and D. A. Russell. 2005. The geographic and stratigraphic distribution of articulated and associated dinosaur remains. Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press, Bloomington
↑¹L. M. Lambe. 1914. Report of the vertebrate palaeontologist. Summary Report of the Geologcal Survey Department of Mines for the Calendar Year 1913 1359:293-299 (https://doi.org/10.4095/312410)
↑¹S. C. R. Maidment and P. M. Barrett. 2011. A new specimen of Chasmosaurus belli (Ornithischia: Ceratopsidae), a revision of the genus, and the utility of postcrania in the taxonomy and systematics of ceratopsid dinosaurs. Zootaxa 2963:1-17 (https://doi.org/10.11646/zootaxa.2963.1.1)
↑^{1 2 3}R. B. Holmes, C. A. Forster, and M. J. Ryan, K. M. Shepherd. 2001. A new species of Chasmosaurus (Dinosauria: Ceratopsia) from the Dinosaur Park Formation of southern Alberta. Canadian Journal of Earth Sciences 38:1423-1438 (https://doi.org/10.1139/e01-036)
↑¹P. Andrade-Ramos and M. Montellano-Ballesteros. 2002. A Late Cretaceous association from Altares, Chihuahua state, Mexico. Journal of Vertebrate Paleontology 22(3 (suppl.)):32A
↑¹J. Westgate, J. Pittman, and R. B. Brown, D. Cope. 2002. Continued excavation of the first dinosaur community from Chihuahua, Mexico. Journal of Vertebrate Paleontology 22(3 (suppl.)):118A
↑¹A. R. Fiorillo. 1989. The vertebrate fauna from the Judith River Formation (Late Cretaceous) of Wheatland and Golden Valley counties, Montana. Mosasaur 4:127-142
↑^{1 2 3 4}T. M. Lehman. 1989. Chasmosaurus mariscalensis, sp. nov., a new ceratopsian dinosaur from Texas. Journal of Vertebrate Paleontology 9(2):137-162 (https://doi.org/10.1080/02724634.1989.10011749)
↑¹T. M. Lehman. 1982. A ceratopsian bone bed from the Aguja Formation (Upper Cretaceous) Big Bend National Park, Texas.

Galerie d'images

Source: Wikimédia

Chasmosaurus belli, a ceratopsian from the Late Cretaceous of North...