迷齒亞綱(學名:Labyrinthodontia)為兩棲綱之下已滅絕的一支,見於泥盆紀後期或石炭紀早期,興盛於石炭紀至二疊紀。舊屬堅頭類,現時重成分類作迷齒亞綱。因牙齒基部,包圍齒髓腔的琺瑯質和齒質,形成複雜如迷路的褶襞而得名。主要為水棲或半水棲。
由於並不構成單系群,許多研究者已經放棄了該術語。然而,至少有些研究者仍然使用該術語以概括廣義的兩棲綱。[1]
包括三目:
註釋
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