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|image = Aspidoceratidae - Euaspidoceras perarmatum.JPG |image_width = 240px |image_caption = Fossil of ''Euaspidoceras perarmatum'' from Calvados, on display at Galerie de paléontologie et d'anatomie comparée in Paris |color = rgb(211,211,164) |phylum = Mollusca |classis = Cephalopoda |subclassis = Ammonoidea |ordo = Ammonitida |superfamilia = Perisphinctaceae |familia = Aspidoceratidae |genus = Euaspidoceras | species = ''E. perarmatum'' | binomial = ''Euaspidoceras perarmatum'' | binomial_authority = J. Sowerby, 1822〔(GBIF ) 〕 }} ''Euaspidoceras perarmatum'' is an extinct ammonoid cephalopod species that lived during the Jurassic. Fossil of ''Euaspidoceras perarmatum'' may be found in the upper Jurassic, Oxfordian stage of France, Germany, Russia and Saudi Arabia, around 154 to 146 million years ago.〔 (MNHN )〕〔 Mikhail Semenovich Mesezhnikov, Gerd Ernst Gerold Westermann (Jurassic Ammonite Zones of the Soviet Union, Edizione 223 ) 〕 ==Description== ''Euaspidoceras perarmatum'' has a shell reaching upto of diameter. 〔(Ammonites ) 〕 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「Euaspidoceras perarmatum」の詳細全文を読む スポンサード リンク
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