The
Phrynosomatinae are a diverse subfamily of
lizards, previously known and sometimes incorrectly classified as
Phrynosomatidae, found from
Panama to the extreme south of
Canada. Many members of the group are adapted to life in hot, sandy
deserts, although the
spiny lizards prefer rocky deserts or even relatively moist
forest edges, and the
short-horned lizard lives in
prairie or
sagebrush environments. The group includes both egg-laying and
viviparous species, with the latter being more common in species living at high elevations.
