230 Million-Year-Old Fossil From Wyoming Challenges Dinosaur Origin Theories
A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early ...
Smithsonian Magazine1mon
Newly Described Fossil From Wyoming Sheds Light on When Frogs and Toads Lost Their Teeth
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 ...