Clade Diapsida Osborn 1903 (diapsid)
PaleoDB taxon number: 135387
Full reference: H. F. Osborn. 1903. On the primary division of the Reptilia into two sub-classes, Synapsida and Diapsida. Science 17(424):275-276
Parent taxon: Romeriida according to J. Müller and R. R. Reisz 2006
Sister taxa: none
Subtaxa: Adelosaurus, Araeoscelidia, Diaptosauria, Dolerosaurus, Drepanosauromorpha, Endennasauridae, Eosuchia, Faxinalipterus, Fremouwsauridae, Horaffia, Hupehsuchia, Ichthyosauromorpha, Lanthanolania, Palacrodon, Prodiapsida, Rysosteus, Sauropterygia, Saurosphargidae, Tamaulipasaurus, Thalattosauriformes, Utahdactylus, Utahdactylus kateae
Ecology: