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The Ophiceratidae is a family in the ammonoid order Ceratitida from the Lower Triassic, previously included in the Otocerataceae but now placed in the Noritiaceae as revised. The Ophiceratidae produced sepenticones with compressed elliptical whorl sections in which the venter is generally rounded and ornamentation is usually weak. The suture is simple, ceratitic. Named genera include ''Ophiceras'', the type, ''Discophiceras'', ''Nordophiceras'', ''Sakhaites'', ''Vishnuites'', and ''Wordieoceras''. The phonetically similar Ophioceratidae of Strand 1934 is synonymous with Ophidioceratidae Hyatt, 1894 a family in the nautiloid cephalopod order, Tarphycerida. ==''References''== *Arkell et al. 1957, Mesozoic Ammonoidea,(L132)in the Treatise on Invertebrate Paleontology, Part-L, Ammonoidea; Geological Soc. of America, reprinted 1990. *Furnish & Glenister, 1864, Nautiloidea - Tarphycerda (K367)in the Treatise on Invertebrate Paleontology, Part-K; Geological Soc. of America * ( Paleobiology Database ) July 2009 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「Ophiceratidae」の詳細全文を読む スポンサード リンク
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