Lepidosauromorpha

Lepidosauromorpha is a group of reptiles comprising all diapsids closer to lizards than to archosaurs (including crocodiles and birds). The only living sub-group is the Lepidosauria: extant lizards, snakes, and tuatara. They first appeared during the Late Permian.

Classification

 * Subclass Diapsida
 * Infraclass Lepidosauromorpha
 * Acerosodontosaurus †.
 * Superorder Sauropterygia - Plesiosaurs †
 * Lepidosauriformes
 * Order Eolacertilia †
 * Superorder Lepidosauria
 * Order Sphenodontia - Tuatara
 * Order Squamata
 * Suborder Lacertilia* - Lizards
 * Family Mosasauridae
 * Suborder Serpentes - Snakes
 * Suborder Amphisbaenia - Worm lizards