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''Texoceras'' is an extinct ammonoid genus in the monotypic goniatitid subfamily Texoceratinae, included in the family Adrianitidae. These are shelled cephalopods more closely related to squids, belemnites, octopuses, and cuttlefish than to nautiloids from which they are derived. ''Texoceras'', named and described by Miller & Furnish in 1937, has an involute, subglobular shell, like ''Adrianites'', with a narrow, deep umbilucus in the middle, but with a reticulate surface and a suture that forms 14 rounded lobes. ==References== * Miller, Furnish, and Schindewolf 1957. Paleozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea; Geological Soc. of America and Univ of Kansas.press. *''Texoceras'', and Texoceratinae in (Goniat online ) 12/02/10 * (Texoceratinae -Paleobiology Database ) 12/02/10 * (''Texoceras'' - Paleobiology Database ) 11/18/10 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「Texoceras」の詳細全文を読む スポンサード リンク
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