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 ...

A recently-discovered amphibian ancestor has been named after Kermit the Frog, the ballad-crooning ... lived 270 million years ago and possessed a skull that could fit in the palm of your hand.

Note: Fossil skull of Kermitops; USNM PAL 407585, Department of Paleobiology, Smithsonian Institution. Note: Kermit the Frog puppet; 1994.0037.01, Gift of Jim Henson Productions. From the ...