Genre

Valide Éteint

Ankylosaurus

Brown 1908

Ankylosaurus est un genre fossile de dinosaure ornithischien herbivore de l'infra-ordre des Ankylosauria et de la famille des Ankylosauridae. Son nom signifie « lézard rigide ».

Plage temporelle

Trias

Jurassique

Crétacé

Paléogène

Néogène

252 201 145 66 0 Ma

Occurrences PBDB

Groupe

Dinosaures

Herbivore Vivant au sol, grégaire Terrestre

cliquer pour agrandir

An Ankylosaurus head (cast of specimen AMNH 5214), on display at the Museum of the Rockies in Bozeman, Montana. This is from a specimen collected in Custer County, Montana. The Ankylosauria were armored dinosaurs that lived from 122 million years ago to 66 million years ago in western North America, Europe, and East Asia. There were two subgroups: The Nodosauridae and Ankylosauridae. The Ankylosauridae contained six species, and a single subfamily -- the Ankylosaurinae. There 18 genus within the subfamily, of which Ankylosaurus is the best known. Ankylosaurus as the last of these, and lived 65.5 to 66.5 million years ago. Ankylosaurus was about 20.5 feet long, 5 feet wide, and 5.5 feet tall at the hip. It walked on all fours, with the rear legs longer than the front ones. They ripped vegetation, and swallowed it whole. Their defining feature was their armor. They body was covered in thick, heavy bony plates, and most of the plates were fused together to make them even stronger. Embedded in the skin were more knobs of bone, and the outer skin above these knobs covered in keratin (the same stuff fingernails are made of). Ankylosaurus had a tail club, which consisted of several large osteoderms fused to the last few tail vertebrae. Ankylosaurus was discovered in 1908. © Tim Evanson · CC BY-SA 2.0 · Wikimedia

Légende en anglais — traduction française non disponible.

PBDB ↗ Wikipedia ↗

Classification

Dinosauria Clade non classé

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Ornithischia Clade non classé

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Parapredentata Clade non classé

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Saphornithischia Clade non classé

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Prionodontia Clade non classé

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Genasauria Clade non classé

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Thyreophora Clade non classé

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Thyreophoroidea Superfamille

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Eurypoda Clade non classé

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Ankylosauria Clade non classé

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Euankylosauria Clade non classé

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Ankylosauridae Famille

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Ankylosaurinae Sous-famille

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Ankylosaurus Genre

Sites de découverte 16 sites géolocalisés

Répartition

Principaux pays

🇺🇸 États-Unis

🇨🇦 Canada

Formations géologiques

Ferris

Hell Creek

Lance

Scollard

Kirtland

Frenchman

Distribution temporelle

Maastrichtien (72.2–66 Ma)

Campanien (83.6–72.2 Ma)

Espèces (1)

Ankylosaurus magniventris 72 Ma

Bibliographie

Description originale

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 DOI ↗

Bibliographie (9)

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

V. M. Arbour and J. C. Mallon. 2017. Unusual cranial and postcranial anatomy in the archetypal ankylosaur Ankylosaurus magniventris. Facets 2(2):764-794 DOI ↗

V. M. Arbour and P. J. Currie. 2016. Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs. Journal of Systematic Palaeontology 14(5):385-444 DOI ↗

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 DOI ↗

B. H. Breithaupt. 1982. Paleontology and paleoecology of the Lance Formation (Maastrichtian), east flank of Rock Springs Uplift, Sweetwater County, Wyoming. Contributions to Geology, University of Wyoming 21(2):123-151

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

B. S. Kues, J. W. Froehlich, and J. A. Schiebout, S. G. Lucas. 1977. Paleontological survey, resource assessment, and mitigation plan for the Bisti-Star Lake Area, northwestern New Mexico. Report to the Bureau of Land Management, Albuquerque, New Mexico

B. Brown. 1914. Cretaceous Eocene correlation in New Mexico, Wyoming, Montana, Alberta. Bulletin of the Geological Society of America 25:355-380 DOI ↗

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 DOI ↗