| 翻訳と辞書 |
| Sahitisuchus ： ウィキペディア英語版 |
Sahitisuchus
''Sahitisuchus'' is an extinct genus of sebecid mesoeucrocodylian known from Rio de Janeiro State of southeastern Brazil. It contains a single species, ''Sahitisuchus fluminensis''. It is a terrestrial sebecid, however also adopted to a semi-aquatic lifestyle to some degree, most probably coexisting with the semi-aquatic alligatorid ''Eocaiman itaboraiensis''.
==Discovery==
''Sahitisuchus'' was named by Alexander W. A. Kellner, André E. P. Pinheiro and Diogenes A. Campos in 2014 and the type species is ''Sahitisuchus fluminensis''. The generic name honors the Xavante people, one of the indigenous Brazilian inhabitants. It is derived from ''sahi ti'', meaning "to be angry" or "to be brave" in Xavante language, alluding at warriors, and ''suchus'', Latinized from the Greek ''souchos'', an Egyptian crocodile god. The specific name, ''fluminensis'', is a latinization of fluminense, a designation of citizens born in the Rio de Janeiro State.〔
''Sahitisuchus'' is known solely from the holotype MCT 1730-R, a nearly complete skull and lower jaw, proatlas, an intercentrum, the axis and the third cervical vertebra, housed at the Museu de Ciências da Terra, Companhia de Pesquisas de Recursos Minerais, in Rio de Janeiro, Brazil. A cast of the holotype, MN 4711-V, is housed at the National Museum of Brazil. MCT 1730-R was discovered during the exploration of the São José de Itaboraí Basin, located in Rio de Janeiro State, that lasted for about five decades and ended in 1984. It was collected from São José Farm, of São José de Itaboraí Municipal District, in the S2 sequence of the Itaboraí Basin, dating to the late Itaboraian South American land mammals age of the middle Late Palaeocene, about 56.5-58.2 million years ago. MCT 1730-R was briefly mentioned in the literature by Price and Paula-Couto (1946) and later in 1991 and 1993, but had never been figured or described before Kellner ''et al.'' (2014) assigned it to a new genus and species.〔
Apart from ''Sahitisuchus fluminensis'', ''Eocaiman itaboraiensis'' is the only other species formally described based on remains collected at São José de Itaboraí Basin. To date, this is the only Paleocene deposit where the crocodyliform fauna was composed by rather primitive (''Sahitisuchus'', a sebecosuchian) and more derived (Alligatoridae) post-K-Pg taxa. ''Sahitisuchus'' and ''E. itaboraiensis'' were either set apart for a comparatively short geological timespan or, most likely, co-occurred.〔
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「Sahitisuchus」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.
|
|