†unranked clade Elasmaria Calvo et al. 2007 (bird foot dinosaur)

Reptilia - Neornithischia

Full reference: J. O. Calvo, J. D. Porfiri, and F. E. Novas. 2007. Discovery of a new ornithopod dinosaur from the Portezuelo Formation (Upper Cretaceous), Neuquén, Patagonia, Argentina. Arquivos do Museu Nacional, Rio de Janeiro 65(4):471-483

Parent taxon: Ornithopoda according to D. Madzia et al. 2018

See also Calvo et al. 2007

Sister taxa: Anomoepodidae, Bonaparteichnium, Brachypoda, Burianosaurus, Camptosaurichnus, Caririchnium, Convolosaurus, Dakotasaurus, Diluvicursor, Dinehichnus, Dinosauropodes, Dolichopoda, Euornithopoda, Fabrosauria, Gideonmantellia, Gigantoshiraminesauropus, Gilmoreosaurus arkhangelskyi, Hypsiloichnus, Hypsilophodon wielandi, Iguanodontia, Iguanodontipus, Jiayinosauropus, Kalodontoidea, Laosaurus, Laosaurus celer, Laosaurus minimus, Morrosaurus, Moyenisauropodidae, Ornithopodichnites, Ornithopoidea, Othnielia, Ovaloolithidae, Phyllodon, Psilotrisauropus, Shiraminesauropus, Siluosaurus, Staurichnium, Tetrapodosauridae, Trachodontoidea, Unespichnium, Walmadanyichnus, Wintonopus

Subtaxa: Anabisetia Atlascopcosaurus Gasparinisaura Macrogryphosaurus Qantassaurus Talenkauen Trinisaura

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Ecology: ground dwelling herbivore

Distribution:

• Cretaceous of Antarctica (1 collection), Argentina (7), Australia (5)

Total: 13 collections each including a single occurrence

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