Osmakasaurus

 Osmakasaurus (meaning "canyon lizard", ósmaka meaning "canyon" in the Lakota language) is a genus of herbivorousiguanodontian dinosaur. It is a basaliguanodontian which lived during the Early 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 O. depressus.[1]

Osmakasaurus
Temporal range: Valanginian, 137 Ma 
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
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Scientific classificationedit
Kingdom:Animalia
Phylum:Chordata
Clade:Dinosauria
Order:†Ornithischia
Clade:†Ornithopoda
Clade:†Ankylopollexia
Clade:†Styracosterna
Genus:†Osmakasaurus
McDonald, 2011
Species:
†O. depressus
Binomial name
†Osmakasaurus depressus
(Gilmore, 1909)
Synonyms
  • Camptosaurus depressus Gilmore, 1909
  • Planicoxa depressa Carpenter & Wilson, 2008

Discovery and namingEdit

The holotype, USNM 4753, was discovered by Nelson Horatio Darton in 1896 within a layer of the Lakota Formation. The type species O. depressus was previously referred to as Camptosaurus depressus, and was first described in 1909 by Charles W. Gilmore.[2][1]It was assigned to the genus Planicoxa as Planicoxa depressa in 2008.[3] In 2011, it was assigned to the new genus Osmakasaurus.[1]


This article uses material from the Wikipedia article
 Metasyntactic variable, which is released under the 
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