| 翻訳と辞書 |
| Tricuspisaurus ： ウィキペディア英語版 |
Tricuspisaurus
''Tricuspisaurus'' is an extinct genus of trilophosaur. Fossils are known from the Ruthen Quarry in Glamorgan, Wales. Like some other trilophosaurs, it has an edentulous, or toothless beak. ''Tricuspisaurus'' gets its name from its heterodont dentition, which includes ''tricuspid'' teeth, or teeth with three cusps. The type species, ''T. thomasi'', was named in 1957 along with the closely related trilophosaur ''Variodens inopinatus'' from Somerset, England.
Although originally classified as a trilophosaur, ''Tricuspisaurus'' was reclassified as a procolophonid in 1993 by paleontologists Hans-Dieter Sues and Paul E. Olsen. This was due to similarities between its tricuspid teeth and those of the newly described procolophonid ''Xenodiphyodon''. Along with ''Tricuspisaurus'', ''Variodens'' and ''Trilophosaurus jacobsi'' were also considered to be procolophonids. However, more recently described cranial material from ''T. jacobsi'' indicates that it is a trilophosaur, which suggests that ''Tricuspisaurus'' is also a trilophosaur rather than a procolophonid.
==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「Tricuspisaurus」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|