Euryapsida is a polyphyletic (unnatural, as the various members are not closely related) group of sauropsids that are distinguished by a single temporal...

Anapsida (no skull opening, including turtles and their relatives), and Euryapsida (one opening high on the skull, including many prehistoric marine reptiles)...

(ichthyosaurs being classified as incertae sedis or with Euryapsida). However, four (or three if Euryapsida is merged into Diapsida) subclasses remained more...

squamosal bones). A monophyletic group including mammals and their ancestors. Euryapsida – One high opening (above the postorbital and squamosal bones). Euryapsids...

eothyridids, and were therefore acquired convergently. Anapsid Diapsid Euryapsida Lists of synapsids Mammal classification List of prehistoric mammals Timeline...

Subclass Diapsida (majority of reptiles, progenitors of birds) Subclass Euryapsida (plesiosaurs, placodonts, and ichthyosaurs) Subclass Synapsida (stem or...

including crocodiles, dinosaurs, birds, lizards, snakes and turtles Subclass Euryapsida – euryapsids Subclass Synapsida – synapsids, including mammal-like reptiles-now...

anapsid-like skull as traditionally assumed or a synapsid-like skull instead. Euryapsida Pough, F. H. et al. (2002) Vertebrate Life, 6th ed. Upper Saddle River...

the Sauropterygia, another marine reptile group, within an overarching Euryapsida, with one such study in 1997 by John Merck showing them to be monophyletic...

Eureptilia Parareptilia Lanthanosuchoidea Millerosauria Procolophonomorpha Ankyramorpha Neodiapsida Eosuchia Younginiformes Avicephala Eolacertilia Euryapsida...