Kermit the Frog meet Kermitops gratus, the most recent ancient amphibian to be identified after examination of a tiny fossilized skull that once sat unstudied in the Smithsonian fossil collection ...

The early fossil record of amphibians and their ancestors is largely fragmentary, which makes it difficult to understand how frogs, salamanders and their kin originated. Adding relatives like ...

It belongs to a lineage believed to have given rise to the three living branches of amphibians – frogs, salamanders and limbless caecilians. While only the skull – measuring around 1.2 inches ...

Skull of Benthosuchus sushkini, an amphibian that lived 230 million years ago ... This specimen is from Texas, U.S.A. An 8-6 million year old specimen of a fossil frog Rana pueyoi from the Late ...