Ratchasimasaurus
| Ratchasimasaurus Temporal range: Aptian
~ | |
|---|---|
| |
Scientific classification 
| |
| 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
| |
Ratchasimasaurus (meaning "Ratchasima lizard") is a genus of iguanodontian 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]
Description[]
One autapomorphy (unique characteristic) of Ratchasimasaurus is its elongated and flat ramus of the dentary. Ratchasimasaurus shows 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]
References[]
- ^ a b Shibata M.; Jintasakul P.; Azuma Y. (2011). "A new iguanodontian dinosaur from the Lower Cretaceous Khok Kruat Formation, Nakhon Ratchasima in northeastern Thailand". Acta Geologica Sinica (English Edition). 85 (5): 969–976. doi:10.1111/j.1755-6724.2011.00530.x.
- ^ "Phylogeny and Biogeography of Iguanodontian Dinosaurs, with Implications from Ontogeny and an Examination of the Function of the Fused Carpal-Digit I Complex - ProQuest". ProQuest.
External links[]
Data related to Ratchasimasaurus at Wikispecies
 | This article related to ornithopod dinosaurs is a stub. You can help Wikipedia by . |
- Iguanodonts
- Aptian life
- Early Cretaceous dinosaurs of Asia
- Cretaceous Thailand
- Fossils of Thailand
- Fossil taxa described in 2011
- Ornithischian genera
- Ornithopod stubs