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Austroceratites : ウィキペディア英語版 | Austroceratites
''Austroceratites'' is an extinct shelled cephalopod genus that lived during the Triassic, included in ammonoid order Ceratitida. Within the Ceratitida, ''Autroceratites'' belongs in the family Ceratitidae and subfamily Ceratitinae. Ceratitidae, in which ''Austroceratites'' is placed, is a mid Triassic family that has left evolute to involute, stoutly ribbed, discoidal shells with ceratitic sutures. ==References== (''Austroceratites'' entry in The Paleobiology Database ) accessed 10 July 2012
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「Austroceratites」の詳細全文を読む
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