翻訳と辞書 Words near each other ・ Cirque Lodge ・ Cirque Medrano ・ Cirque Mountain ・ Cirque of the Towers ・ Cirque of the Unclimbables ・ Cirque Peak ・ Cirque Peak (Alberta) ・ Cirque Peak (Antarctica) ・ Cirque Plume ・ Cirque Productions ・ Cirque Rocks ・ Cirque Royal ・ Cirque stairway ・ Cirque Surreal ・ Cirque Éloize ・ Cirquella ・ Cirquent ・ Cirquent calculus ・ Cirquility ・ Cirqus Voltaire ・ CIRR-FM ・ Cirrate shell ・ Cirratulidae ・ Cirratulus cirratus ・ Cirrbopetalum gracillimum ・ Cirrhaea ・ Cirrhaea dependens ・ Cirrhaea loddigesii ・ Cirrhia ・ Cirrhibarbis capensis Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cirquella ： ウィキペディア英語版 Cirquella ''Cirquella'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Atdabanian stage, in the former continent Laurentia. == Description == Only the thin and lightly calcified headshields (or cephalon) of ''Cirquella'' have ever been found. It is very flat, almost oval in outline, the length about 85% of the width. The central area of the cephalon (or glabella) is moderately tapered forward. The furrows dividing the glabella are only weakly developed. The back of the eye ridge is opposite the first lobe (L1) of the glabella in front of the band (or occipetal ring) at the back of the glabella.〔 In ''Cirquella espinata'' there is no genal spine but a slight angularity of margin opposite first lobe in front of the occipetal ring. In ''Cirquella nummularia'' the rim of the cephalon is entirely rounded.〔W.H. Fritz (1993). The Lower Cambrian Olenelloid Trilobite Genera ''Cirquella'' and ''Geraldinella'' from Southwestern Canada. Journal of Paleontology, 67/5:856-868.()〕 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「Cirquella」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.