Amphibians belong the phylum Chordata, subphylum Vertebrata, and class Amphibia. The class Amphibia, which contains more 7,000 species, is comprised of three extant (or currently existing) orders; Anura (the tailless amphibians commonly known as frogs and toads), Caudata (the tailed amphibians commonly known as salamanders, newts, sirens, and amphiumas), and Gymnophiona (the limbless and principally subterranean amphibians known commonly as caecilians, which have a physical appearance similar to earthworms).
The order Anura makes up the bulk of the diversity of living amphibians, with more than 6000 species. The Order Caudata is the second most diverse group of living amphibians with nearly 700 species, followed by Gymnophiona with 200 species.
Costa Rica’s 201 species of amphibians are represented by all three living orders, with 145 species of anurans (72 % of total diversity), 49 species of caudates (24 % of total diversity), and 7 species of caecilians (4 % of total diversity).
This page contains example images taken by the C.R.A.R.C. of some the diversity of amphibians that are native to Costa Rica.Family Leptodactylidae Family Microhylidae Family Ranidae ORDER CAUDATA: Family: Plethodontidae ORDER GYMNOPHIONA: Family: Dermophiidae