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Class Reptilia
Order Squamata
Suborder Sauria
Family Anguidae


Elgaria sp.—Alligator Lizards // Elgaria kingii—Madrean Alligator Lizard // Elgaria multicarinata—Southern Alligator Lizard

Anguidae—Glass and Alligator Lizards

The Anguidae include three current genera in North America.


Elgaria sp.—Alligator LizardsPleistocene regional distribution of Elgaria sp.

Synonyms. Gerrhonotus.


Late Blancan/Irvingtonian: Anza-Borrego Desert (Gensler et al. 2006).

Rancholabrean: Cool Water Coal Gasification Solid Waste Site (Jefferson 1991a).

Rancholabrean/Early Holocene: Metro Rail Universal City Station (Jefferson 2014).

Sangamon: Naval Housing Unit (Jefferson 1991a).

Wisconsin: Glen Abbey (Majors 1993: cf. gen.).

Mid/Late Wisconsin: Diamond Valley (Springer et al. 2009).

Late Wisconsin/Holocene: Solar One (Jefferson 1991a).

Literature. Gensler et al. 2006; Jefferson 1991a, 2014; Majors 1993; Springer et al. 2009.


Elgaria kingii Gray 1838—Madrean Alligator LizardPleistocene distribution of Elgaria kingii

Madrean Alligator Lizard, Elgaria kingii. Photograph by Carl S Lieb

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.


Elgaria multicarinata Blainville, 1835—Southern Alligator LizardRegional Pleistocene distribution of Elgaria multicsrinata

Synonyms. Gerrhonotus multicarinatus.

The current range includes much of southern California.


?Late Irvingtonian/Rancholabrean: Emery Borrow Pit (Jefferson 1991a).

Mid Wisconsin: Pacific City (Wake and Roeder 2009).

Mid/Late Wisconsin: Rancho La Brea (Brattstrom 1953); San Miguel Island (Guthrie 1993); Tsuma Properties, San Clemente.

Late Wisconsin: Maricopa (Jefferson 1991a)

Literature. Brattstrom 1953; Guthrie 1993; Jefferson 1991a, , 2014; Wake and Roeder 2009.


Last Update: 22 Apr 2015