Crotaphytid lizards or more commonly known as Collared lizards are found in North America only (American southwest and northern Mexico). They typically prey on other lizards and other vertebrates for their sustenance. There are 12 species found in two genera (below). National Park Service photo from the Zion map and guide. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Animalia redirects here. ... Typical Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... Subclasses Anapsida Diapsida Synonyms Reptilia Laurenti, 1768 Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane, and members of the class Sauropsida. ... Suborders Lacertilia- Lizards Serpentes - Snakes Amphisbaenia - Worm lizards This article is about the Squamata order of reptiles. ... Subgroups Lepidosauromorpha Archosauromorpha Sauria is a clade of reptiles that includes all living diapsids, as well as their common ancestor and all its extinct descendants. ... World map showing North America A satellite composite image of North America. ... Typical classes Petromyzontidae (lampreys) Placodermi - extinct Chondrichthyes (cartilaginous fish) Acanthodii - extinct Actinopterygii (ray-finned fish) Actinistia (coelacanths) Dipnoi (lungfish) Amphibia (amphibians) Reptilia (reptiles) Aves (birds) Mammalia (mammals) Vertebrata is a subphylum of chordates, specifically, those with backbones or spinal columns. ...
Interparietal scale small (distinctly smaller than ear opening) unlike Iguanidae.
Never have an enlarged midorsal scale row or fringe (Iguanidae often do)
Never have a divided rostral scale (Iguanas with no enlarged midorsal scale row will have a divided rostral scale).
No bony spines or projecting ridges on their heads.
No scales projecting over their ears, and no scales forming a prominent fringe on sides of toes as in Phrynosomatidae.
Binomial name Iguana iguana (Linnaeus, 1758) The green iguana (Iguana iguana) is a large, arboreal lizard from Central and South America. ... Genera Amblyrhynchus Brachylophus Conolophus Ctenosaura Cyclura Dipsosaurus Iguana Sauromalus Frost et al. ... Genera Amblyrhynchus Brachylophus Conolophus Ctenosaura Cyclura Dipsosaurus Iguana Sauromalus Frost et al. ... Echis carinatus sochureki The rostral scale, or rostral, in snakes and other scaled reptiles refers to the median plate on the tip of the snout that borders the mouth opening. ... Genera Callisaurus Cophosaurus Holbrookia Petrosaurus Phrynosoma Sator Sceloporus Uma Urosaurus Uta Phrynosomatidae is a family of lizards. ...
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