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Massetognathinae is an extinct subfamily of cynodonts in the family Traversodontidae. It includes four species from the Middle and Late Triassic: ''Massetognathus pascuali'' from Argentina, ''Massetognathus ochagaviae'' and ''Santacruzodon hopsoni'' from southern Brazil, and ''Dadadon isaloi'' from Madagascar. Massetognathines have several distinguishing characteristics, including flattened skulls, small canine teeth, and postcanine teeth with three cusps on their outer edges. Massetgognathinae was defined by Kammerer ''et al.'' (2012) as the clade containing all traversodontids more closely related to ''Massetognathus pascuali'' than to ''Gomphodontosuchus brasiliensis'', and is the sister taxon of the traversodontid subfamily Gomphodontosuchinae, which was defined by Kammerer ''et al.'' (2008) as all traverodontids more closely related to ''G. brasiliensis'' than to ''M. pascuali''. Below is a cladogram from Kammerer ''et al.'' (2012) showing the phylogenetic position of Massetognathinae within Traversodontidae:〔 |label2=Traversodontidae |2= |2= |label2=Gomphodontosuchinae |2= }} }} }} }} }} }} }} }} }} ==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「Massetognathinae」の詳細全文を読む スポンサード リンク
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