WASHINGTON (Reuters) - There definitely were no muppets during the Permian Period, but there was a Kermit - or at least a forerunner of modern amphibians that has been named after the celebrity frog.

The rocks in the area in which the skull was found, known as the Red Beds, are over 270 million years old, and contain fossils of several ancient species that are early relatives of modern amphibians, ...

Scientists at the Smithsonian identified a fossilized skull from a 270 million-year-old amphibian, which they've named Kermitops gratus Scientists have found a previously undiscovered ancient ...

A recently-discovered amphibian ancestor has been named after Kermit the Frog, the ballad-crooning, pig-wooing lime green frog who headlines the Muppets. According to a new study in the Zoological ...

Scientists have discovered evidence of a prehistoric species of amphibian that could be the precursor to modern species − and they bestowed upon it the great honor of being named after a green froggy ...

Scientists at the Smithsonian identified a fossilized skull from a 270 million-year-old amphibian, which they've named Kermitops gratus Charlotte Phillipp is a Weekend Writer-Reporter at PEOPLE. She ...

Scientists on Thursday described the fossilized skull of a creature called Kermitops gratus that lived in Texas about 270 million years ago. The fossil was collected in 1984 near Lake Kemp in Texas.