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Mallagnostus : ウィキペディア英語版 | Mallagnostus
''Mallagnostus'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the upper Lower Cambrian, with remains found in USA (New York), Canada (Newfoundland), Spain, England, Russia (Tuva, Gorno-Altayskaya), Mongolia, and the lower Middle Cambrian according to fossils from China (Tian Shan) and Russia (Yakutia).〔 == Taxonomy == ''Mallagnostus'' was originally described as belonging to the Agnostina, but it is better placed in the Eodiscina. Within the Weymouthiidae, ''Mallagnostus'' belongs to a clade that further includes ''Tannudiscus'', ''Jinghediscus'' and the Agnostina.〔
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「Mallagnostus」の詳細全文を読む
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