The Leiopelmatidae, or New Zealand primitive frogs, are a family belonging to the suborder Archaeobatrachia.

Late jump recovery is unique in the Leiopelmatidae.

The four extant species of Leiopelmatidae are only found in New Zealand.

The Leiopelmatidae, or New Zealand primitive frogs, are a family belonging to the suborder Archaeobatrachia.

The Maud Island frog, Leiopelma pakeka, is a New Zealand primitive frog, one of only four belonging to the ancient family Leiopelmatidae.

These are Ascaphidae, Bombinatoridae, Discoglossidae and Leiopelmatidae which have few derived features and are probably paraphyletic with regard to other frog lineages.

Archey's frog, Leiopelma archeyi, is an archaic, rare frog that is native to New Zealand, one of only three (or four) extant species belonging to the taxonomic family Leiopelmatidae.

While some taxonomists have suggested combining the North American frogs of the genus Ascaphus in the Ascaphidae family with the New Zealand frogs of the genus Leiopelma in the Leiopelmatidae family, the current consensus is that these two groups constitute two separate families.