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

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.Around 230 million years ago, at least 19 alligator-size amphibians expired together on an ancient floodplain in what is now Wyoming. The animals' fossilized remains, uncovered across four excavatio…