noun
mammal-like reptile
Paleontological term for extinct reptiles that share characteristics with mammals; often used in discussions of synapsids and therapsids. Compare with 単弓類 (synapsid).
See also: 単弓類
哺乳類型爬虫類は、哺乳類の祖先に近いと考えられている。
Mammal-like reptiles are thought to be close to the ancestors of mammals.
ディメトロドンは有名な哺乳類型爬虫類の一種だ。
Dimetrodon is a well-known type of mammal-like reptile.
単弓類 (synapsid) is a broader clade that includes mammal-like reptiles and modern mammals; 哺乳類型爬虫類 is an older, more colloquial term often used for non-mammalian synapsids.
Compound of 哺乳類 (mammal) + 型 (type) + 爬虫類 (reptile), literally 'mammal-type reptile'. A calque from English 'mammal-like reptile'.