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Baschkirites : ウィキペディア英語版 | Baschkirites
''Baschkirites'' is an extinct cephalopod genus belonging to the ammonoid order Goniatitida that lived during the Early Carboniferous (Bashkirian). ==Description== The shell of ''Baschkirites'' is discoidal, with narrow umbilicus in adult stage. Growth lines are fine, forward slanding, resulting in long ventrolateral salients (protrusions). The entire shell may be covered with simple and sometimes granose spiral ornamentation. Ventral lobe of the suture is wide and V-shaped, with moderately high median saddle; the first lateral saddle is rounded or subacute, the adventitious lobe deep and acute.
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「Baschkirites」の詳細全文を読む
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