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Aipoceratidae : ウィキペディア英語版 | Aipoceratidae Aipoceratidae is a small family of Carboniferous nautilids which have smooth shells and loosely coiled to faintly impressed whorls and in which the aperture may be modified at maturity. The Aipoceratidae includes the Lower Carboniferous ''Aipoceras'' and ''Asymptoceras'' and ''Librovitschiceras'' from the Upper Carboniferous. The Solenochilidae are closely related. ==References==
*Bernhard Kummel, 1964. Nautiloidea - Nautilida; Treatise on Invertebrate Paleontology, Park K. Geological Society of America and University of Kansas Press.
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「Aipoceratidae」の詳細全文を読む
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