〘Noun〙 Another name for the Labyrinthodont subclass of the Amphibian class. It is made up of fossil species that arose in the Devonian Period of the Paleozoic Era and became extinct in the Triassic Period of the Mesozoic Era. They had large heads and skulls covered with hard bone plates. The surfaces of their teeth are intricately folded. It includes the species that branched off into reptiles. Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information |
〘名〙 両生綱迷歯亜綱の別称。古生代のデボン紀に発生し中生代の三畳紀に絶滅した化石種からなる。頭が大きく、頭骨は堅い骨板でおおわれる。歯の表面が複雑に折れ込む。爬虫類へと分岐するもとになったものを含む。
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