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|image =Alsatites proaries, Slg Reiter.JPG |image_caption=Alsatites proaries |name = ''Alsatites'' |status = fossil |regnum = Animalia |phylum = Mollusca |classis = Cephalopoda |subclassis = Ammonoidea |ordo = Ammonitida |superfamilia = Psiloceratoidea |familia = Arietitidae |genus = ''Alsatites'' |genus_authority = Haug 1894 }} ''Alsatites '' is an extinct genus of cephalopod belonging to the Ammonite subclass. They lived during the Early Jurassic, Hettangian till the Sinemurian and are generally extremely evolute, many whorled. Keel broad and blunt organisms, they also exhibit a primary ribbing which is close and persistent.〔(【引用サイトリンク】url=http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=14538 )〕 ==References== : * Arkell, et al.,1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L (Ammonoidea). Geol Soc of America and Univ Kansas Press, Revised 2013, Part L, Michale K. Howarth : * (Sepkoski Online ) : * 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「Alsatites」の詳細全文を読む スポンサード リンク
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