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Massetognathus : ウィキペディア英語版 | Massetognathus
''Massetognathus'' (pron.: MASS-eh-TOG-nah-thuss; Greek for “chewing muscle jaw”) is a genus of extinct plant-eating cynodont belonging to the Traversodontid family existing during the Middle Triassic period, 235 million years ago, in the Chañares Formation in Argentina and the Santa Maria Formation in Brazil. ==Description== ''Massetognathus'' species measured to about 46 centimeters (1.5 ft) in length with an estimated weight between 1-1.5 kilograms (2-3 lbs).〔 ''Massetognathus'' was the smaller, plant-eating equivalent of the better-known ''Cynognathus'' with incisors, fang-like canines and flat-topped molars covered by low ridges, an adaptation for grinding tough plant stems, roots, and other plant materials. It had a low and flattened skull indicating that the specimen had a relatively shorter and broader snout than larger specimens. It was a fox sized animal with claws on its feet and a long dog-like tail. Like most cynodonts, there is some evidence that they laid eggs, were warm blooded, as indicated by the detailed structure of the bones, and had a body covered by hair.
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「Massetognathus」の詳細全文を読む
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