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He suspected that the lizard might be venomous due to the grooves in the teeth. [8] The first drawing of a Gila monster by Baird, S. F. (1857) [8] The Gila monster is the largest extant lizard species native to North America north of the Mexican border. Its snout-to-vent length ranges from 26 to 36 cm (10 to 14 in). The tail is about 20% of the ...
The beaded lizards have one close living relative, the Gila monster (H. suspectum), as well as many extinct relatives in the Helodermatidae, whose genetic history may be traced back to the Cretaceous period. The genus Heloderma has existed since the Miocene Epoch, when H. texana ranged over most of North America. [5]
The southern alligator lizard (Elgaria multicarinata) is a common species of lizard in the family Anguidae.The species is native to the Pacific coast of North America. [1] [2] It ranges from Baja California to the state of Washington and lives in a variety of habitats including grasslands, chaparral, forests, and even urban areas.
The Audubon Society Field Guide to North American Reptiles and Amphibians. New York: Alfred A. Knopf. 743 pp., 657 color plates. ISBN 0-394-50824-6. (Sceloporus undulatus, pp. 529–530 + Plate 375). Powell R, Conant R, Collins JT (2016). Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Fourth Edition ...
Pygmy short-horned lizard Phrynosoma mcallii: Flat-tail horned lizard Phrynosoma platyrhinos: Desert horned lizard Sceloporus graciosus: Common sagebrush lizard Sceloporus magister: Desert spiny lizard Sceloporus occidentalis: Western fence lizard Sceloporus orcutti: Granite spiny lizard Sceloporus uniformis: Yellow-backed spiny lizard Uma inornata
The western fence lizard (Sceloporus occidentalis) is a species of lizard native to Arizona, New Mexico, and California, as well as Idaho, Nevada, Oregon, Utah, Washington, and Northern Mexico. The species is widely found in its native range and is considered common, often being seen in yards, or as the name implies, on fences.
Gambelia sila, also known as the blunt-nosed leopard lizard, is listed as a federal endangered species and is listed by the State of California as an endangered species and fully protected species. This species is thought to have declined as a result of habitat destruction and habitat fragmentation caused by development and habitat modification.
Cope ED. 1892. A critical review of the characters and variations of the snakes of North America. Proceedings of the U.S. National Museum 14(882): 589-694. Garman S. 1884. The reptiles and batrachians of North America. Memoires of the Museum of Comparative Zoology 8(3): 1-185. Murphy RW, Kovac V, Haddrath O, Oliver GS, Fishbein A. 1995.