Osmakasaurus Temporal range: Early Cretaceous, 137 Ma |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Clade: | Dinosauria |
Order: | †Ornithischia |
Suborder: | †Ornithopoda |
Clade: | †Styracosterna |
Genus: |
†Osmakasaurus McDonald, 2011 |
Species: | †O. depressus |
Binomial name | |
Osmakasaurus depressus (Gilmore, 1909 |
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Synonyms | |
Camptosaurus depressus Gilmore, 1909 |
Camptosaurus depressus Gilmore, 1909
Planicoxa depressa Carpenter & Wilson, 2008
Osmakasaurus is a genus of herbivorous iguanodontian dinosaur. It is a basal iguanodontian which lived during the lower Cretaceous period (Valanginian age) in what is now Buffalo Gap of South Dakota, United States. It is known from the Chilson Member of the Lakota Formation. This genus was named by Andrew T. McDonald in 2011 and the type species is Osmakasaurus depressus. O. depressus was previously referred to as Camptosaurus depressus, and was first described in 1909 by Charles W. Gilmore.