Ratchasimasaurus

 Ratchasimasaurus (meaning "Ratchasima lizard") is a genus of non-hadrosauridiguanodontian ornithopod dinosaur from Early Cretaceous (Aptian stage) Khok Kruat Formation of Nakhon Ratchasima Province in northeastern Thailand. The type and only species is R. suranareae, named after Thao Suranari, a 19th-century war heroine.[1] It was considered by one study to be a nomen dubium, diagnosed with characters widespread in Styracosterna.[2]

Ratchasimasaurus
Temporal range: Aptian
~120–113 Ma 
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classificatione
Kingdom:Animalia
Phylum:Chordata
Clade:Dinosauria
Order:†Ornithischia
Clade:†Ornithopoda
Clade:†Iguanodontia
Genus:†Ratchasimasaurus
Shibata, Jintasakul, & Azuma, 2011
Type species
†Ratchasimasaurus suranareae
Shibata, Jintasakul, & Azuma, 2011

DescriptionEdit

One autapomorphy (unique characteristic) of Ratchasimasaurus is its elongated and flat ramus of the dentary. Ratchasimasaurusshows both primitive and derived characters for Iguanodontia, such as "a caudally inclined coronoid process and alveolar trough with a primitive crown impression, and a derived buccal shelf between the tooth row and the coronoid process".[1]


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 Metasyntactic variable, which is released under the 
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