[4] Hyloidea contains the following subgroups:[1][5][6] Anurans all share a number of morphological characteristics, so researchers have had to use DNA testing to understand their relationships.

[2] Analysis supports the Hyloidea being the sister group to the Australobatrachia, a clade of frogs containing species in Chile, Australia, and New Guinea.

[7] Hyloidea is the largest superfamily of anurans due to scientists placing frogs into this family when the relationships to others are unknown.

Due to the nature of their original environment, Hyloidea frogs are more associated with higher temperatures no matter where they are found in the world.

[11][12] Today, they can be found in every continent except Antarctica, although in 2020 a roughly 40 million year old fossil from the hyloid family Calyptocephalellidae was discovered on Seymour Island in the Antarctic Peninsula.