Sauropsida n. pl. : A comprehensive group of vertebrates, comprising the reptiles and birds.

Example:


Taxonomy
Sauropsida, reptiles, sauropsids, birds, lizards, unnamed, synapsid, extinct relatives, Mammal-like reptiles, Gauthier, Goodrich, free encyclopedia, mammals, fossils, evolution, The Tree of Life, Amniota, synapsids.

Defination from the web:
Sauropsida ("lizard faces") has a long history, and hails back to Thomas Henry Huxley, and his opinion that birds had risen from the dinosaurs. ... Thus his Sauropsida included Procolophonia, Eosuchia, Millerosauria, Chelonia (turtles), Squamata (lizards and snakes), Rhynchocephalia, ...