Synapsida is one of the two major clades of vertebrate animals in the group Amniota, the other being the Sauropsida (which includes reptiles and birds)...

(2011), Benson (2012) and Spinder (2016) unless otherwise noted. Class Synapsida Eupelycosauria Sphenacodontia †Haptodus †Hypselohaptodus †Ianthodon Pantherapsida...

Subclass Euryapsida (plesiosaurs, placodonts, and ichthyosaurs) Subclass Synapsida (stem or proto-mammals, progenitors of mammals) Class Aves (birds) Subclass...

stem mammals. This groups Dimetrodon together with mammals in the clade Synapsida, while reptiles are placed in a separate clade, Sauropsida. Single openings...

"The Evolution of the Maxillary Canal in Probainognathia (Cynodontia, Synapsida): Reassessment of the Homology of the Infraorbital Foramen in Mammalian...

most popular definition states that Sauropsida is the sibling taxon to Synapsida, the other clade of amniotes which includes mammals as its only modern...

classification of Reptilia in 1903, and erected two major groups: Diapsida and Synapsida, and in 1905, South African palaeontologist Robert Broom created a third...

Luthardt, V. Annacker, and R. Roßler. 2018. First arboreal ‘pelycosaurs’(Synapsida:Varanopidae) from the early Permian Chemnitz Fossil Lagerstatte, SE-Germany...

within Synapsida and considered them as the suborder Sphenacodontia. Most phylogenetic analyses have place Varanopidae as a basal member of Synapsida and...

(including cats, dogs, and seals). Mammals are the only living members of Synapsida; this clade, together with Sauropsida (reptiles and birds), constitutes...