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Ischnacanthiformes : ウィキペディア英語版 | Ischnacanthiformes
Ischanacanthiformes is an order of Acanthodii or spiny sharks found in the Ukraine and United Kingdom. Members of this order were nektonic carnivores,〔McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. 〕 eating animals that swim rather than plankton. They had slender builds, light armor, deeply inserted spines, and two dorsal fins.〔McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. 〕 It was described by Berg in 1940.〔(【引用サイトリンク】url=http://fossilworks.org/?a=taxonInfo&taxon_no=149983 )〕 ==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「Ischnacanthiformes」の詳細全文を読む
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