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Siksika ottae : ウィキペディア英語版 | Siksika ottae
''Siksika ottae'' is an extinct prehistoric cartilaginous fish, lived during the Upper Mississippian. It has been discovered at the well known Bear Gulch Formation (Montana, United States), dated at Carboniferous period. It is known mostly on the base of fossil teeth, but also partially neurocranium and mandibles which hint a close relationship to coeval petalodontiform sharks ''Janasssa'' and ''Netsepoye''. Dentition is generally heterodont. ''Siksika'' means literally Blackfoot, being named after the Siksika Nation. ==References==
*(''Siksika ottae'' ) *(''Blackfoot (Siksika)'' ) *
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「Siksika ottae」の詳細全文を読む
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