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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Palaeotis ： ウィキペディア英語版 Palaeotis ''Palaeotis'' is a genus of paleognath birds from the middle Eocene epoch of central Europe. One species is known, ''Paleotis weigelti''. The holotype specimen is a fossil tarsometatarsus and phalanx. Lambrect (1928) described it as an extinct bustard (genus ''Otis''), and gave it its consequent name (''Palaeotis'' means ''ancient bustard'').〔 Lambrecht, K. (1928) ''Palaeotis weigelti n. g. sp., eine fossil trappe aus der mitteleozanen Braunkohle des Geiseltales. Jahrbuch hallesch. Verband., Halle, n.s., 7:11.〕 After a suggestion by Storrs L. Olson, a review of the type specimen and the referral of several other fossils by Houde and Haubold (1987) concluded that ''Paleotis'' is a palaeognath and assigned it to the same order as ostriches; the Struthioniformes.〔 Houde, Peter. Haubold, Hartmut. (1987) Palaeovertebrata, 17 (2): 27 - 46, 6 figures. 20 June 1987.〕 In the 1930s a nearly complete fossil with catalog number GM 4362 was assigned to ''Palaeotis'', probably by Lambrecht. Houde and Haubold found three additional specimens in the collection of the Geiseltalmuseum, Martin-Luther University, Halle/S., Germany. One of those three is the holotype specimen of ''Paleogrus geiseltalensis'' (=Ornithocnemus geiseltalensis, Lambrecht 1935). Houde and Haubold also requested permission to prepare a fossil cataloged as HLMD Me 7530 at the Hesseches Landesmuseum in Darmstadt, Germany. HLMD Me 7530 was collected from the famous Messel shales. When it was prepared, the two Ornithologists assigned it to Palaeotis as well. Other scientists are less convinced that Palaeotis is a struthioniform, placing it instead as a more basal ratite. It may be related to the mysterious ''Remiornis'', a putative ratite known from the Eocene of France. If ''Palaeotis'' is, as Houde and Haubold suggested a basal or even ancestral ostrich, it would be the only ratite known from the Northern hemisphere at this early age, and this has important implications for the evolution of ratites. See Paleognathae. ==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「Palaeotis」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.