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 ...

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 ...

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 ...

BILLINGS – 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 ...

A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early dinosaur history. Reading time 3 minutes Though paleontologists have been ...

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 ...