Ammonite fossils have been found across the globe ... fish mosaic triptych from the Green River Formation Lagerstätte, Wyoming – with specimens dating back 50 million years – and a rare ...

Meet Ahvaytum bahndooiveche, a dinosaur slightly larger than a chicken, with a long tail, beaklike mouth and feathers. It ...

The state of Wyoming is home to some of the best and most diverse fossil specimens on the planet. Due to their high quality and scientific value, fossils from Wyoming have been relocated to museums ...

Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as large as nine feet wide. Some ammonites had long, straight shells, while others had ...

Though paleontologists have been discussing the origin and spread of dinosaurs for decades, the widely accepted theory was that they emerged in the southern part of the ancient continent of Pangea ...

Opalized ammonite fossils are some of the most unique and spectacular paleontological specimens. They were formed through a geological process known as opalization, wherein organic material from ...