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| image = | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Ammonoidea | ordo = Clymeniida | superfamilia = Gonioclymeniaceae | familia = Acanthoclymeniidae | familia_authority = Schindewolf, 1955 | subdivision_ranks = Species 〔(【引用サイトリンク】 url = http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=14561&is_real_user=1 )〕 | subdivision = * ''A. Acanthoclymenia'' * ''A. Probeloceras'' * ''A. Prochorites'' }} Acanthoclymeniidae is a family of early, primitive, clymeniid ammonoid cephalopods that lived during the Late Devonian.〔 At one time this family was known to contain a single genus, ''Acanthoclymenia'', named by Hyatt in 1900, which is its type. Acanthoclymeniidae are characterized by their small slightly involute, subdiscoidal, widely umbilicate shells that reach only a few centimeters in diameter. This description applies to the genus ''Acanthoclymenia'' as well. ==References== * Miller, Furnish, and Schindewolf (1957) Paleozoic Ammonidea, Treatise on Invertebrate Paleontology Part L, Ammonoidea. Geological Soc of America. 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「Acanthoclymeniidae」の詳細全文を読む スポンサード リンク
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