An ancient lake bed in southwestern Wyoming known for producing tons of fossilized fish has now extended scientific knowledge about early birds. Found more than a decade ago in an area known as Fossil ...

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 ...

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 excavations ...

Several activities for people of all ages are planned during Fossil Fish Festival Saturday, March 24, at the University of Wyoming Geological Museum. Activities, free and open to the public, are from ...

Nick Hornicak of North Huntingdon digs dinosaurs, literally. The 24-year-old Indiana University of Pennsylvania graduate student was part of a team of fellow dinosaur diggers who in June worked in the ...

One of the world's best-preserved specimens of Archaeopteryx - the earliest-known birdlike animal - is headed for a small, privately owned museum in Thermopolis. The Wyoming Dinosaur Center has ...

The first day of the field season dawns clear and bright, with an already strong sun sliding up from behind Cloud Peak, the highest in the Bighorn Mountains. Down here in the basin it is already warm ...

Ancient lakes The fossils were found in a portion of what’s known as the Green River Formation — “one of the largest documented accumulations of (lake) sedimentary rock in the world,” according to a ...