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Pylaecephalidae
Pylaecephalidae is a family of dicynodont therapsids that includes ''Diictodon'', ''Robertia'', and ''Prosictodon'' from the Permian of South Africa. Pylaecephalids were small burrowing dicynodonts with long tusks. The family was first named in 1934 and was redefined in 2009. Diictodontidae and Robertiidae are considered junior synonyms of Pylaecephalidae. ==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「Pylaecephalidae」の詳細全文を読む
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