An illustration from the paper, depicting Ninumbeehan digging a burrow in a riverbed for the dry season and then re-emerging when the monsoon returned. Higher res tif file available on request at ...

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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 uncovered the fossilized skull of a 270-million-year-old ancient amphibian ancestor in the collection of the Smithsonian's National Museum of Natural History. The team of researchers ...

A fragment of upper jaw fossil from the Early Cretaceous is among the oldest examples of a toothless amphibian in the fossil record Chihiro Kai The arid valleys of Wyoming’s Cloverly Formation are ...

The discovery of a new Jurassic species typically conjures ideas of reptile-like behemoths. It’s exciting to learn about a new prehistoric creature that would have towered over buildings or a fearsome ...

In a remarkable stroke of luck, a 240-million-year-old amphibian fossil was uncovered in a pile of rocks used for building a garden retaining wall in New South Wales, Australia. This unprecedented ...

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.

Arjan Mann (right), a Smithsonian postdoctoral paleontologist and former Peter Buck Fellow, and Calvin So (left), a doctoral student at George Washington University, holding the fossil skull of ...