Crotaphytidae

Crotaphytus vestigium

The Crotaphytidae are a family of iguana -like ( Iguania ) that occur in the south-western North America from Oregon to the Mississippi and northern Mexico.

Features

The animals reach a head -body length of ten to 14 centimeters. They differ by a total of 30 autapomorphies, mostly the skull bone on, from other iguana -like. Examples are:

  • No increased dandruff crest on back and tail and no dewlap.
  • Undivided Scutum rostral.
  • No bone shields and thorns on the head.
  • No enlarged scales to protect the ears.
  • No enlarged scales on the sides of the toes.

Way of life

All Crotaphytidae live in deserts and other arid areas, preferably on rocky terrain. Their diet consists of insects, other invertebrates and small lizards. Enter at risk noises and are on the run to run in a position only on its hind legs.

System

The Crotaphytidae were initially as a family of iguanas ( Iguanidae ) until they were in 1989 by Frost and Etheridge elevated to the rank of a family.

  • Collared lizards ( Crotaphytus ) Crotaphytus antiquus Axtell & Webb 1995
  • Halsbandleguan ( Crotaphytus collaris ) Say 1823
  • Crotaphytus grismeri Mcguire 1994
  • Crotaphytus insularis Van Denburgh & Slevin 1921
  • Crotaphytus Nebrius Axtell & Montanucci 1977
  • Crotaphytus reticulatus Baird 1858
  • Crotaphytus vestigium Smith & Tanner 1972
  • Gambelia copeii Yarrow 1882
  • Gambelia sila Stejneger 1890
  • Baird & Girard 1852 Gambelia wislizenii
Squamata Hobart Muir Smith Autapomorphy
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