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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 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.
The lizards may be found at elevations up to 4,500 ft (1,370 m). [5] Primarily herbivorous, chuckwallas feed on leaves, fruit, and flowers of annuals and perennial plants; insects represent a supplementary prey. [5] The lizards are said to prefer yellow flowers, such as those of the brittlebush (Encelia farinosa). [5]
The IUCN status of state reptiles at the genus level is ambiguous. For Massachusetts's garter snake, the listed Least Concern represents the status of the pictured common garter snake, the species found throughout much of North America and residing in Massachusetts. [28]
Helodermatidae is a family of terrestrial lizards whose only genus is Heloderma, which includes the only venomous lizards on the American continent. The family consists of two species native to the southwestern United States, Mexico and Guatemala, which prefer semiarid habitats. 2 species occur in Mexico. Heloderma horridum (Wiegmann, 1829) VU
Common name Callisaurus draconoides: Zebra-tailed lizard Petrosaurus mearnsi: Banded rock lizard Phrynosoma blainvilli: Coast horned lizard Phrynosoma douglasii: Pygmy short-horned lizard Phrynosoma mcallii: Flat-tail horned lizard Phrynosoma platyrhinos: Desert horned lizard Sceloporus graciosus: Common sagebrush lizard Sceloporus magister ...
Common names: red diamond rattlesnake, red rattlesnake, red diamond snake, [3] more. Crotalus ruber is a venomous pit viper species found in southwestern California in the United States and Baja California in Mexico. Three subspecies are currently recognized, including the nominate subspecies described here. [4]