Carboniferous tetrapods

Captorhinidae is an extinct family of tetrapods, traditionally considered primitive reptiles, known from the late Carboniferous to the Late Permian. They had a cosmopolitan distribution across Pangea.

Pederpes ("Peter's Foot") is an extinct genus of early Carboniferous stegocephalian, dating from 348 to 347.6 Ma in the Tournaisian age (lower Mississippian). Pederpes contains one species, P. finneyae, 1 m long.

Whatcheeria is an extinct genus of early tetrapod from the Mississippian (Early Carboniferous) of Iowa. Fossils have been found in 340 million year old fissure fill deposits in the town of Delta. The type species, Whatcheeria deltae was named in 1995. It is classified within the family Whatcheeriidae, along with the closely related Pederpes and possibly Ossinodus.

Ossinodus is an extinct genus of stem tetrapod. Fossils have been found from the Ducabrook Formation in Queensland, Australia dating back to the middle Visean stage of the Early Carboniferous (Mississippian). It was originally placed within the family Whatcheeriidae, but the absence of an intertemporal bone as suggested by a recent reconstruction of the skull based on fragmentary material may prove it to be stemward of all whatcheeriids.

genus of the first four-limbed vertebrates and their descendants

Gymnarthridae is an extinct family of the group Recumbirostra. Gymnarthrids are known from Europe and North America and existed from the Late Carboniferous through the Early Permian. Remains have been found from the Czech Republic, Nova Scotia, Illinois, Texas, and Oklahoma. Previously they were considered tuditanomorph microsaurs.