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Allosauridae : ウィキペディア英語版 | Allosauridae
Allosauridae was a family of medium to large sized carnivorous theropod dinosaurs. Members included ''Saurophaganax'', ''Allosaurus'', and the poorly known ''Epanterias'', which could well be a specimen of'' Allosaurus''. Allosauridae was named by American paleontologist Othniel Charles Marsh in 1878. The exact number of genera that can be included here is very debatable and most of the upper Jurassic and Lower Cretaceous carnosaurs are somewhat closely related to ''Allosaurus''. Whatever the case, allosaurids seemed to be the most successful hunters of their times, outnumbering the Megalosauridae and Ceratosauridae, with which they competed for prey. The allosaurids would eventually be succeeded by their close relatives the carcharodontosaurs in the southern hemisphere, and replaced by the coelurosaurian tyrannosaurids in the northern hemisphere, during the Cretaceous Period. ==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「Allosauridae」の詳細全文を読む
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