Early Jurassic amphibians

Eocaecilia is an extinct genus of gymnophionan amphibian from the early Jurassic Kayenta Formation of Arizona, United States. One species is described, Eocaecilia micropodia.

Vieraella is an extinct genus of frogs from the Lower Jurassic (Early Pliensbachian to Toarcian) Roca Blanca Formation of Argentina, and one of the oldest true frogs known. This genus is known by a single exceptionally well-preserved specimen, P.V.L. 2188, with at least eight presacrals vertebrae, free ribs, ulna and radius not fused, bony skull with some discoglossid characters.

Prosalirus is an extinct genus of primitive frog known from the Early Jurassic of North America. It contains a single species, P. bitis, known from the Kayenta Formation of Arizona.

Siderops (from the Greek sideros meaning “iron” and -ops meaning “face” ) is an extinct genus of chigutisaurid temnospondyl from Early Jurassic of Australia, containing the species S. kehli (named after the Kehl family of ‘Kolane’, Wandoan, Queensland where the fossil was found).