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Ratchasimasaurus : ウィキペディア英語版 | Ratchasimasaurus
''Ratchasimasaurus'' is a genus of non-hadrosaurid iguanodontian ornithopod dinosaur from Early Cretaceous (Aptian stage) Khok Kruat Formation of Nakhon Ratchasima Province in northeastern Thailand. 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." ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Ratchasimasaurus」の詳細全文を読む
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