Petrolacosaurus

Youngina

Lazarussuchus

Cteniogenys

Champsosaurus

Gephyrosaurus

Squamata

Trilophosaurus

Howesia

Mesosuchus

Prolacerta

Euparkeria

Proterosuchus

Protorosaurus

Drepanosaurus

Megalancosaurus

Macrocnemus

Tanystropheus

Langobardisaurus