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|regnum = Animalia |phylum = Mollusca |classis = Cephalopoda |subclassis = Ammonoidea |ordo = Ammonitida |superfamilia = Eoderocerataceae |familia = Liparoceratidae |genus = Aegoceras |subgenus = ''Aegoceras (Beaniceras)'' |genus_authority = Howarth (2013) |subdivision_ranks = Species |subdivision = * ''A(B). centaurus'' (Quenstedt) * ''A(B). costatum'' * ''A(B). cottardiense'' * ''A(B). crassum'' * ''A(B). larzacensis'' * ''A(B). luridum'' * ''A(B). rotundum'' * ''A(B). senile'' }} ''Aegoceras (Beaniceras)'' is small, coarsely ribbed genus ammonite from the Lower Jurassic with coarsely ribbed rounded whorls. The shell is evolute, early whorls a barrel-shaped cadicone, later become serpenticonic. ==Distribution== Jurassic of France, Germany and Spain 〔 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「Aegoceras (Beaniceras)」の詳細全文を読む スポンサード リンク
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