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''Kindleoceras'' is an oncocerid genus belonging to the Valcouroceratidae, extinct nautiloid cephalopods that lived during the Middle and Late Ordovician. ''Kindleoceras'' is characterized by a gently curved or virtually straight shell, the cross section of which is triangular with flattened dorsum and subangular venter. The siphuncle is small, ventral, cyrtochoanitic with outwardly flared necks, thickened rings, and well developed radial internal actinosiphonate deposits. In general form ''Kindleoceras ''is similar to ''Manitoulinoceras'' except for its triangular cross section. ''Augustoceras'', another valcouroceratid, differs in that the rays in its actinosiphonate deposits are longer but less numerous. ''Kindleoceras'', named by Foeste, has been found in the Middle and Upper Ordovician of Ontario in Canada. ==''References''== *Walter C Sweet, 1964 Nautiloidea-Oncocerida. Treatise on Invertebrate Paleontology Part K Mollusca 3. 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「Kindleoceras」の詳細全文を読む スポンサード リンク
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