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Ischnacanthus : ウィキペディア英語版 | Ischnacanthus
''Ischnacanthus'' is an extinct genus of fish in the class Acanthodii. ''Ischnacanthus'' lived during the Early Devonian period. ''Ischnacanthus'' has jaws but still retains small mosaic scales. They either had very small teeth or none. Fossils were found in Tillywhandland Quarry, Forfar, Scotland. Some species were of large size, up to 2 m in length.〔http://palaeos.com/vertebrates/acanthodii/teleostomi.html#Teleostomi〕 ==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「Ischnacanthus」の詳細全文を読む
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