Mass Grave of Giant Amphibians Unearthed in Wyoming Offers Rare Insight into Late Triassic Ecosystems

Triassic amphibians the size of alligators perished in mass die-off in Wyoming, puzzling 'bone bed' reveals

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is providing scientists important clues about these creatures' lives.

Mass mortality of giant, alligator-sized amphibians uncovered in dinosaur-age fossils

Palaeontologists have found fossil evidence that dozens of giant, alligator-sized amphibians died together about 230 million years ago.

Ancient alligator-sized amphibians died under mysterious circumstances

‘It probably spent most, if not all, of its life in the water eating… anything unfortunate enough to venture too far into the water.'

Ancient amphibians as big as alligators died in mass mortality event in Triassic Wyoming

Dozens of amphibians perished together on an ancient floodplain around 230 million years ago, according to a study published in the open-access journal PLOS One by Aaron M. Kufner of the University of Wisconsin-Madison, U.S., and colleagues.

Amphibian Cemetery: In the U.S. state of Wyoming, paleontologists have uncovered the 230 million-year-old mass grave of huge amphibians – they were as large as an adult alligator. 19 individuals of the species Buettnererpeton bakeri once died there. But how? Did they die together or have they been driven individually by the current to their last resting place? A search for traces in ancient times now brings clarity. In earlier ages, much was gre…

Uncovering a Mysterious Amphibian Mass Die-Off from 230 Million Years Ago

The collection of Metoposaurid temnospondyl fossils unearthed in Wyoming tell an incomplete story.