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''Metoolithus'' is an oogenus of fossil bird egg from Nebraska. It is known from a single, near-complete egg, as well as several eggshell fragments. They are small, (60 mm x 44 mm) and spheroid. They show a mix of avian and non-avian characteristics. ==References== 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「Metoolithus」の詳細全文を読む スポンサード リンク
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