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Shuvosauridae
Shuvosauridae is an extinct family of theropod-like pseudosuchian within the clade Poposauroidea. Shuvosaurids existed in North (USA) and South America (Argentina) during the Late Triassic period (late Carnian to Rhaetian stages). Shuvosauridae was named by Sankar Chatterjee in 1993 to include the genus ''Shuvosaurus''.
In a 2007 study ''Chatterjeea'' was demonstrated to be a junior synonym of ''Shuvosaurus'', and the therein cladistic analysis found that ''Shuvosaurus'', ''Effigia'' and ''Sillosuchus'' all form a closely related group. However, this group was left nameless, and simply referred to as Group Y. However, in accordance with ICZN rules of naming priority Shuvosauridae has priority over Chatterjeeidae (Shuvosauridae being named in 1993, while Chatterjeeidae was named in 1995). In 2011, Sterling J. Nesbitt proposed a new definition to this clade: "The least inclusive clade containing ''Shuvosaurus inexpectatus'' Chatterjee, 1993, and ''Sillosuchus longicervix'' Alcober and Parrish, 1997".
==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「Shuvosauridae」の詳細全文を読む
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