| 翻訳と辞書 |
Sosioceras
''Sosioceras'' is an Upper Permian shouchangoceratin pseudohaloritid characterized by a subdiscoidal shell, about 2 cm in diameter, marked by growth lines, as with ''Neoaganides'', and having a mature peristome with a double constriction near the periphery. The suture also closely resembles that of ''Neoaganides''.
Sosioceras is found in the Upper Permian Sosio limestone of Sosio valley, in Sicily, first described by Gemmellaro, 1880, as ''Brancoceras pygmaeum'', thought be a rare element of the Sosio fauna. Miller and Furnish, 1957, redefined it as Neoaganides pygmaeum (Gemmellero) on the basis of close similarity of size, form, and suture to ''Neoaganides grahamensis''. Based on features of the peristome and recognition of a wrinkle layer, unique in this family, Frest ''et al.'', 1981, renamed the genus ''Sosioceras'', in reference to its location, arguing for its separation. The type and only species is ''Sosioceras pygmaeum'' (Gemmellero, 1880).
==References==
*Frest, T.J, B.F Glenister and W.M Furnish; 1981. Pennsylvanian-Permian Cheiloceratacean Ammonoid Families Maximitidae and Pseudohaloritidae. Memoir 11, the Paleontological Society; Jour Paleo V 55, May 1981, supplement.
*Miller, A.K. and W.M Furnish, 1957. Permian Ammonids from Southern Arabia. Journal of Paleontology V.31, no. 6, p 1043 _, Nov 1957.
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「Sosioceras」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|