翻訳と辞書 |
Hebetoxyites : ウィキペディア英語版 | Hebetoxyites
''Hebetoxyites'' is a fossil ammonoid cephalopod from the middle part of the Bajocian stage, middle Jurassic, included in the Strigoceratidae, Haplocerataceae. The shell is oxyconic, with a sharp rim but no keel, and involute, with the inner whorls hidden. The unbilicus is very small. Sides have a spiral ridge but are not strigate. ==References==
* W.Arkell, et al. Mesozoic Ammonoidea (L271), Treatise on Invertebrate Paleontology, Part L, 1957. Geological Society of America and University of Kansas Press * Sepkoski's list of Cephalopod genera. ()
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「Hebetoxyites」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.
|
|