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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 ...

Frogs are commonly found in wet tropical forests today. More than a third of nearly 7,000 species of frog, in fact, live in wet forests. Fossil record, however, has little direct evidence to show a ...

The discoveries of two new species serve both to underscore the variety of fossils found at the Arkansas site, including dinosaurs, mammals, fish, amphibians and reptiles, and to reinforce the overall ...

A team of Australian scientists led by UNSW Sydney paleontologist Lachlan Hart has calculated the body mass of two ancient amphibians. The last of the temnospondyls—amphibians that look more like ...

More than a third of the 7,000-odd living species of frogs and toads are found in rain forests around the world. But the fossil record for amphibians from these kinds of wet, tropical environments has ...

The last of the temnospondyls – amphibians that look more like crocodiles – became extinct during the Cretaceous period, about 120 million years ago, after thriving on Earth for more than 200 million ...

The cataclysm that ended the Age of Dinosaurs not only drove land animals to migrate into the water, but also pushed aquatic creatures to colonize the land, a new study reveals. The shifts between ...