There are three orders of amphibians in the world: Anura, Caudata, and Gymnophiona. The AmphibiaWeb database currently contains 6,358 amphibian species (Jul 24, 2008) , of which 5,613 are Anura (frogs and toads), 569 are Caudata (newts and salamanders), and 176 are Gymnophiona (caecilians). The numbers of species have grown rapidly. Since 1985 the total number of recognized species has increased by nearly 35%.

Anura 88% Caudata 9% Gymnophiona 3%