| 翻訳と辞書 |
Parapapio
''Parapapio'' is a genus of prehistoric baboons closely resembling the forest dwelling mangabeys. ''Parapapio'' is distinguished from other ''Papio'' by the lack of an anteorbital drop, thin browridges, absence of maxillary fossae or a sagittal crest and only slight sexual dimorphism.
There are four recognized species, ''Pp. jonesi'', ''Pp. whitei'', ''Pp. broomi'', and ''Pp. antiquus'', but these taxonomic designations have generated some controversy. Traditionally, these species have been distinguished based on molar size with ''Pp. jonesi'' being the smallest and ''Pp. whitei'' the largest. However, variation in molar size in ''Pp. broomi'' overlaps the other two. ''Pp. jonesi'' is distinguished as having a more squarish muzzle than ''Pp. whitei'' but more rounded than ''Pp. broomi''; however these distinctions are subtle and better diagnostic criteria are needed.〔
Some authors argue for a confused taxonomy in ''Parapapio'' but disagree with the reclassification. Since there may be no significant difference between mean tooth sizes or isotopic signatures in ''Pp. broomi'' and ''Pp. jonesi'', these may represent a single sexually dimorphic species. However, the ranges of variation in ''Pp. broomi'' and ''Pp. whitei'' overlap and show no statistical differences based on an ANOVA run on the eleven interlandmark distances used in their analysis, and propose that the two are merely a single variable species.〔 The sample of ''Pp. jonesi'' (STS 565) differs enough in facial characteristics that it remains distinctive from other ''Parapapio'' species.
==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「Parapapio」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.
|
|