†suborder Gymnarthriformes Hay 1930
PaleoDB taxon number: 414368
Synonym: Gymnarthria Case 1910 [replaced name] (taxon 194930)
Full reference: O. P. Hay. 1930. Second Bibliography and Catalogue of the Fossil Vertebrata of North America 390(II):1-1074
Parent taxon: Cotylosauria according to O. P. Hay 1930
Sister taxa: Amniota, Archeria, Bathyglyptus, Captorhiniformes, Captorhinomorpha, Chamasaurus, Conodectiformes, Datheosauri, Diadectiformes, Diadectomorpha, Diadectosauria, Labidosauria, Limnoscelia, Pantyliformes, Pantyloidea, Pareiasauriformes, Sauraviformes, Solenodonsauridae, Tomicosaurus, Trilophosauria
Subtaxa: none