Flat-tail horned lizard

Flat-tail horned lizard
Conservation status
	; Near Threatened (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Iguania
Family:	Phrynosomatidae
Genus:	Phrynosoma
Species:	P. mcallii
Binomial name
	Phrynosoma mcallii; (Hallowell, 1852)
Synonyms
	List Anota M'Callii ; Hallowell, 1852; Doliosaurus mc'calli ; (Hallowell, 1852); Phrynosoma Maccalli ; (Hallowell, 1852); Phrynosoma maccallii ; (Hallowell, 1852); Phrynosoma (Anota) mcallii ; (Hallowell, 1852); ;

The flat-tail horned lizard (Phrynosoma mcallii), also known commonly as the flat-tailed horned lizard, is a species of lizard in the family Phrynosomatidae. A species of reptile, it is endemic to the Sonoran Desert of the southwestern United States and northwestern Mexico. Its multiple adaptations for camouflage help to minimize its shadow. The species is threatened, with a restricted range under pressure from human activities such as agriculture and development, and is specially protected in the United States.