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Pascualgnathus : ウィキペディア英語版 | Pascualgnathus
''Pascualgnathus'' is a genus of traversodontid cynodont from the Middle Triassic of Argentina. Fossils have been found from the Río Seco de la Quebrada Formation. The type species ''P. polanskii'' was named in 1966. ==Description== ''Pascualgnathus'' is a small traversodontid. It has large upper canine teeth and small postcanine teeth. The postcanine teeth of ''Pascualgnathus'' and other traversodontids are wide, allowing them to eat plant material. The upper postcanines of ''Pascualgnathus'' are rectangular. Each has a central ridge and a cusp on the side facing the mouth. There are also two cusps on the side of the tooth facing the lips, with one being larger than the other. The lower postcanines have less of a rectangular shape and have only two cusps. Unlike the upper postcanines, they are longer than they are wide.
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「Pascualgnathus」の詳細全文を読む
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