翻訳と辞書 Words near each other ・ Cassinia leptocephala ・ Cassinia longifolia ・ Cassinia macrocephala ・ Cassinia maritima ・ Cassinia monticola ・ Cassinia ochracea ・ Cassinia quinquefaria ・ Cassinia straminea ・ Cassinia subtropica ・ Cassinia telfordii ・ Cassinia tenuifolia ・ Cassinia theresae ・ Cassinia trinerva ・ Cassinia uncata ・ Cassinia venusta ・ Cassinian ・ Cassini–Huygens ・ Cassini–Huygens retirement ・ Cassino ・ Cassino (band) ・ Cassino (card game) ・ Cassino (disambiguation) ・ Cassino Band of Northumbria Army Cadet Force ・ Cassino Simpson ・ Cassino to Korea ・ Cassino War Cemetery ・ Cassinoceras ・ Cassinopsis ・ Cassio Road ・ Cassio Werneck 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 Cassinian ： ウィキペディア英語版 Cassinian The Cassinian is the latest age of the Canadian Epoch when thought of temporally and the uppermost stage of the Canadian Series when thought of stratigraphically. The Canadian, either as a series or as an Epoch is the name that has been given to the Lower, or Early, Ordovician in North America and has been applied worldwide.〔Flower, R. H. 1964. The Nautiloid Order Ellesmeroceratida (Cephalooda) , Memoir 12, State Bureau of Mines and Mineral Resources, Socorro, New Mexico.〕〔Moore, Lalicker, and Fischer 1952. Invertebrate Fossils, McGraw-Hill〕 The Cassinian is named for the Fort Cassin Formation of Vermont. Rocks of Cassinian age are found in the Champlain Valley and among other places in North America in the Great Basin of Western Utah and Nevada, and in the uppermost El Paso Group in southern New Mexico and west Texas.〔 The Cassinian has been given a span of only 1.2 million years, with a range from 473 - 471.8 m.y.a.〔() Geowhen〕 which may be short, looking at the El Paso section and Early Ordovician cephalopod evolution 〔〔Teichert et al, 1964. Treatise on Invertebrate Paleontology Part K Mollusca 3, Teichert and Moore eds.〕 In worldwide terms the Cassinian is upper, or late Arenigian which is exactly equivalent to the newly proposed Floian, both spanning the same 6.8 million years.〔 In the four part Canadian series, the Cassinian is late upper Canadian, preceded by the Jeffersonian, and is equivalent to the upper Blackhillsian stage of the Ibexian which has been sought to replace the Canadian as the Lower Ordovician in North America. However the Ibexian, named for the Ibex region in western Utah, extends 2.7 .m.y. into the Cambrian taking up more than half of the Trempealeauan.〔 The Cassinian is followed in North America by the Whiterockian and by the newer ICS Dapingian, given respective durations of 9.8 and 3.7 m.y. and in older chronologies 〔 by the 7.8 million year Llanvirnian. ==''References''== 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「Cassinian」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.