Within a few million years, two important amniote lineages became distinct: the synapsids, which would later include the common ancestor of the mammals; and the sauropsids, which would eventually come to include turtles, lizards, snakes, crocodilians, dinosaurs and birds.
Sauropsids would later include which other animals into its group?
turtles, lizards, snakes, crocodilians, dinosaurs and birds