Unranked clade
Valid Extinct

Elasmaria

Calvo et al. 2007

Elasmaria is a clade of ornithopods known from Cretaceous deposits in the former Gondwana that contains many bipedal ornithopods that were previously considered "hypsilophodonts".

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
45
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Elasmaria
click to enlarge
Anabisetia - 01 © Kabacchi · CC BY 2.0 · Wikimedia
PBDB Wikipedia
Classification
Dinosauria Unranked clade
Ornithischia Unranked clade
Neornithischia Unranked clade
Pyrodontia Unranked clade
Cerapoda Unranked clade
Ornithopoda Suborder
Iguanodontia Infraorder
Euiguanodontia Unranked clade
Elasmaria Unranked clade
Fossil sites 45 geolocated sites
Distribution
Top countries
🇦🇺 Australia
25
🇦🇷 Argentina
16
🇦🇶 Antarctica
2
🇧🇷 Brazil
1
🇿🇦 South Africa
1
Geological formations
Allaru Mudstone
2
Cerro Lisandro
2
Snow Hill Island
2
Lago Colhué Huapi
2
Cerro Fortaleza
2
Temporal distribution
Maastrichtian (72.2–66 Ma)
3
Campanian (83.6–72.2 Ma)
9
Santonian (85.7–83.6 Ma)
2
Coniacian (89.8–85.7 Ma)
1
Turonian (93.9–89.8 Ma)
2
Cenomanian (100.5–93.9 Ma)
10
Albian (113.2–100.5 Ma)
12
Aptian (121.4–113.2 Ma)
1
Barremian (125.77–121.4 Ma)
4
Hauterivian (132.6–125.77 Ma)
1
Images 2
Bibliography
Original description
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
Bibliography (29)
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F. L. Agnolín, G. Álvarez Herrera, and M. Aranciaga Rolando, M. Motta, S. Rozadilla, L. Verdiquio, J. S. D.'Angelo, D. Moyano-Paz, A. N. Varela, J. Sterli, S. Bogan, S. Miner, A. M. Rodríguez, G. Munoz, M. P. Isasi , F. E. Novas. 2024. Fossil vertebrates from the Cerro Fortaleza Formation (Upper Cretaceous), Santa Cruz Province, Argentina. Cretaceous Research 154:105735:1-33 DOI ↗
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M. C. Herne, J. P. Nair, and A. R. Evans, A. M. Tait. 2019. New small-bodied ornithopods (Dinosauria, Neornithischia) from the Early Cretaceous Wonthaggi Formation (Strzelecki Group) of the Australian-Antarctic rift system, with revision of Qantassaurus intrepidus Rich and Vickers-Rich, 1999. Journal of Paleontology 93(3):543-584 DOI ↗
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F. E. Novas, F. L. Agnolin, and S. Rozadilla, A. M. Aranciaga-Rolando, F. Brisson-Egli, M. J. Motta, M. Cerroni, M. D. Ezcurra, A. G. Martinelli, J. S. D.’Angelo, G. Alvarez-Herrera. 2019. Paleontological discoveries in the Chorrillo Formation (upper Campanian-lower Maastrichtian, Upper Cretaceous), Santa Cruz Province, Patagonia, Argentina. Revista del Museo Argentino de Ciencias Naturales, Nueva Serie 21(2):217-293 DOI ↗
P. R. Bell, M. C. Herne, and T. Brougham, E. T. Smith. 2018. Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia. PeerJ 6:e6008:1-40 DOI ↗
M. C. Herne, A. M. Tait, and V. Weisbecker, M. Hall, J. P. Nair, M. Cleeland, S. W. Salisbury. 2018. A new small-bodied ornithopod (Dinosauria, Ornithischia) from a deep, high-energy Early Cretaceous river of the Australian-Antarctic rift system. PeerJ 5:e4113:1-77 DOI ↗
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