1) Family iguania 2) Family iguanidae 3) Iguanidae 4) Reptile family 1) Iguanidae 
Iguania is a suborder of Squamata (snakes and lizards) that contains the iguanas, chameleons, agamids, and New World lizards, such as anoles and phrynosomatids. Using morphological features as a guide to evolutionary relationships, Iguania is believed to form the sister group to the remainder of the Squamata. However, molecular information has pla...