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.

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 ...

Newly discovered proto-amphibian, Kermitops (USNM PAL 407585) from the Department of Paleobiology collections at the Smithsonian Institution National Museum of Natural History. The species is named ...

LOS ANGELES - Researchers at the Smithsonian's National Museum of Natural History have stumbled upon the fossilized skull of a 270-million-year-old amphibian forebear. As per the discovery published ...

Call it a grand-phibian. Scientists have unearthed a fossil of the world’s oldest tadpole in Argentina — a shock finding that could alter our understanding of amphibian evolution, experts say.

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.

Scientists have discovered a new ancient amphibian species that could bridge the gap in understanding how modern-day frogs and salamanders developed. The fossilized skull of the 270-million-year-old ...