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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 Errivaspis ： ウィキペディア英語版 Errivaspis ''Errivaspis'' is an extinct pteraspid heterostracan genus known from fossils at the Wayne Hereford Quarry, of Early Devonian England, and of Podolia, Early Devonian Ukraine. It originally described by Dr. E. I. White as one of five form-variants of ''Pteraspis rostrata'', i.e., "''Pteraspis rostrata var. waynesis''. In 1984, Alain Blieck moved ''var. waynesis'' into its own genus, ''Errivaspis'', which he named after Errol Ivor White.〔 Other later researchers would then mistakenly assume that Blieck synonymized the entire genus of ''Pteraspis'' into ''Errivaspis''. ==Description== ''Errivaspis'' had large dorsal plates and ventral plates, the linking branchial plate, as well as a cornual plate at the side, an orbital plate around the eye. A rostral plate formed a pointed ‘snout’, several small plates around the mouth, and a dorsal spine pointing backwards. The posterior half of the body was covered with small scales. The caudal fin was fan-shaped. 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「Errivaspis」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.