Toxicofera (Greek for "those who bear
toxins"), is a
clade of
scaled reptiles (squamates) that includes the Serpentes (snakes),
Anguimorpha (monitor lizards, gila monster, and alligator lizards) and
Iguania (iguanas, agamas, and chameleons). Toxicofera contains about 4600 species, (nearly 60%) of
extant squamata. It encompasses all
venomous reptile species, as well as numerous related non-venomous species. There is little morphological evidence to support this grouping, however it has been recovered by all recent molecular analyses.