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Pseudoaspidoceras : ウィキペディア英語版 | Pseudoaspidoceras
''Pseudoaspidoceras'' is an extinct cephalopod genus belonging to the subclass Ammonoidea and family Acanthoceratidae. These cephalopods lived during the Turonian stage of the Upper Cretaceous, between 93.5 ± 0.8 Ma and 89.3 ± 1 Ma (million years ago). Their shells reached a diameter of 90-120 mm and had ornate ribs. ==References==
*(Jsdammonites ) *(The Paleobiology Database ) *(GBIF ) *Sepkoski, Jack ( Sepkoski's Online Genus Database – Cephalopodes )
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「Pseudoaspidoceras」の詳細全文を読む
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