|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the suborder Labyrinthodontia by Cope (1875); it was synonymized subjectively with Apoecospondyli by Hay (1902); it was reranked as the unranked clade Labyrinthodontia by Säve-Söderbergh (1934); it was synonymized subjectively with Temnospondyli by Kuhn (1946); it was reranked as the superorder Labyrinthodontia by Romer (1947); it was reranked as the subclass Labyrinthodontia by Carroll (1967), Daly (1973), Carroll (1988) and Murry (1989).
It was assigned to Reptilia by Owen (1861); to Stegocephali by Cope (1875); to Batrachomorpha by Säve-Söderbergh (1934); to Apsidospondyli by Romer (1947); and to Amphibia by Lydekker (1889), Carroll (1967), Daly (1973), Carroll (1988) and Murry (1989).
|Year||Name and author|
|1861||Labyrinthodontia Owen p. 206|
|1875||Labyrinthodontia Cope p. 10|
|1889||Labyrinthodontia Lydekker p. 1021|
|1934||Labyrinthodontia Säve-Söderbergh p. 17|
|1947||Labyrinthodontia Romer p. 310|
|1967||Labyrinthodontia Carroll p. 113|
|1973||Labyrinthodontia Daly p. 568|
|1989||Labyrinthodontia Murry p. 271|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|R. Owen 1861||Head defended, as in the Ganocephala, by a continuous casque of externally sculptured and unusually hard and polished osseous plates, including the supplementary "post-orbital'' and "super-temporal" bones, but leaving a " foramen parietale." Two occipital condyles. Vomer divided aiid dentigerous. T\vo nostrils. Vertebral bodies, as well as arches, ossified, biconcave. Pleurapophyses of the trunk, long and bent. Teeth rendered complex by undulation and side branches of the converging folds of cement, whence the name of the order.|