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Forstercooperia : ウィキペディア英語版 | Forstercooperia
''Forstercooperia'' is an extinct genus of indricotheriine hyracodontid rhinoceros from the Middle to Late Eocene of Eurasia. ==Description== ''Forstercooperia'' is known from a vast amount of cranial material, although only some scant postcranial remains. The largest species is ''F. totadentata'', followed by ''F. confluens'' and finally ''F. minuta''.〔 The average size of all species, is about equal with a large dog, even though later genera like ''Juxia'' and ''Paraceratherium'' reached sizes of a cow and even much larger.〔 Each species is distinguished by cheek tooth morphology, with the remaining skull quite similar.〔 Like primitive rhinocerotoids, ''Forstercooperia'' possesses blunt ends on the tips of its nasals, above the nasal incision. Unlike all modern rhinoceroses, the nasals of ''Forstercooperia'', as well as many related genera, lack rugosities, which suggests that they lacked any form of horn. The nasal incision extends fairly far into the upper jaw, ending just posterior to the canine. ''Forstercooperia'' possesses a small post-insicor diastema, not as large as its descendants, and similar in size to that of ''Hyracodon''.〔
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「Forstercooperia」の詳細全文を読む
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