This lizard inhabits most of the southwestern half of Arizona, lowlands on the northwest, and well up into the Grand Canyon. There are some isolated populations north of the canyon. It also extends into the extreme southwestern part of New Mexico.
Late Wisconsin: Desert Almond (Van Devender et al. 1977a); Kokoweef Cave (Jefferson 1991a); Picacho Peak (Van Devender et al. 1991).
Late Wisconsin/Holocene: Kokoweef Cave (Jefferson 1991a).
Literature. Jefferson 1991a; Van Devender et al. 1977a; Van Devender et al. 1991.
Last Update: 26 Feb 2014