Amtosaurus

Amtosaurus (/ˌɑːmtoʊˈsɔːrəs/; Amtgai lizard) is a genus of ornithischian dinosaur based on a fragmentary skull collected from the Upper Cretaceous Bayan Shireh Formation (Cenomanian to Santonian) of Mongolia and originally believed to represent an ankylosaurid.[1] Hadrosaurid affinities have also been suggested.[1] However, per Parish and Barrett, this specimen is too fragmentary to be reliably classified beyond an indeterminate ornithischian. A second species assigned to the genus, A. archibaldi, has become the basis of a valid ankylosaurid taxon, Bissektipelta.[2]

Amtosaurus
Temporal range: Late Cretaceous, 90 Ma
↓
Skull fragment
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Superorder:
Dinosauria
Order:
†Ornithischia
Genus:
†Amtosaurus

Kurzanov & Tumanova 1978
Binomial name
†Amtosaurus magnus
Kurzanov & Tumanova 1978 (type)

References
  1. Kurzanov, S. M., & Tumanova, T. A. 1978. [On the structure on the endocranium in some ankylosaurs from Mongolia]. Paleontol. Zh. 1978:90-96.
  2. Parish, Jolyon; Barrett, Paul (2004). "A reappraisal of the ornithischian dinosaur Amtosaurus magnus Kurzanov and Tumanova 1978, with comments on the status of A. archibaldi Averianov 2002". Canadian Journal of Earth Sciences. 41 (3): 299–306. doi:10.1139/e03-101.


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