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Indonautilus : ウィキペディア英語版 | Indonautilus
''Indonautilus'' is an involute nautilid from the Middle and Upper Triassic. (Anisian-Norian), with a small or occluded umbilicus and subrectangular whorl section belonging to the Liroceratidae (Clydonaulilaceae). Flanks are slightly bowed, converging on a flattened venter. Ventro-lateral shoulders are narrowly rounded or angular. Umbilical shoulder are broadly rounded. The siphuncle is subdorsal. ''Indonautilus'' has been found in Egypt, Israel, the Himalayas, and East Indies. ==''References''==
*Bernhard Kummel, 1964. Nautiloidea -Nautilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America and University of Kansas Press. *(Indonautilus ) in the Paleobiology database 4/25/14
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「Indonautilus」の詳細全文を読む
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