The Anguidae include three genera in North America. Only one species is represented as a fossil in our region, however, and that may be Holocene rather than Pleistocene.
Synonyms. Gerrhonotus kingii.
Van Devender and Worthington (1977) reported the Madrean Alligator Lizard as a fossil from Howell's Ridge Cave and also as occurring at present in a nearby wash. Most modern occurrences, however, were said to be in somewhat more mesic, montane situations.
Fig. 1. Madrean Alligator Lizard (Elgaria kingii). Photograph by Carl S. Lieb.
Late Wisconsin/Holocene: Howell's Ridge Cave (Van Devender and Worthington 1977).
Literature. Van Devender and Worthington 1977.
Last Update: 4 Nov 2008