Teiidae, Lacertids, Tupinambis, Gymnophthalmidae, Bachia
Autarchoglossa is a clade (evolutionary grouping) of squamates that includes skinks, anguimorphs, snakes, and relatives. Autarchoglossa is supported as a monophyletic grouping (i.e. a valid clade) by morphological features in living and extinct lizards and snakes. Some phylogenetic analyses based on molecular features such as DNA sequences in living squamates do not support Autarchoglossa.
The recent proposal of the Toxicofera clade places Iguania within Autarchoglossa, which is not supported by morphological analyses. Placing Iguania within Autarchoglossa may lead to confusion as Autarchoglossa means "free-tongued", and iguanians do not have this feature. To circumvent this, it has been proposed that Autarchoglossa be renamed to Unidentata (single egg-tooth, a feature both groups share) and be redefined to include Iguania.
The following are families classified within Autarchoglossa (excluding Iguania):Anguidae Gray, 1825 – Alligator Lizards, Anguid Lizards, Anguids, Galliwasps, Glass Lizards
Anniellidae Nopcsa 1928 – Legless Lizards, North American Legless Lizards
Cordylidae Mertens, 1937 – Girdle-tailed Lizards
Gymnophthalmidae Merrem, 1820
Helodermatidae Gray, 1837 – Beaded Lizards, Gila Monsters, Venomous Lizards
Lacertidae Gray, 1825 – Lacertid Lizards, Old World Runners
Lanthanotidae Steindachner, 1877 – Earless Monitor Lizard, Earless Monitors
Scincidae Gray, 1825 – Skinks
Teiidae Gray, 1827 – Ameivas, Ground Lizards, New World Runners, Racerunners, Whiptails
Varanidae Hardwicke & Gray, 1827 – Monitor Lizards, Monitors
Xantusiidae Baird, 1858 – Night Lizards
Xenosauridae Cope, 1866