Nature
The Thomas Fork Formation is an Early Cretaceous geologic formation in Wyoming dating to the Albian age. It is notable for reported dinosaur eggs, making it one of the state’s dinosaur-bearing rock units from roughly the middle of the Cretaceous period. Other reported fossils include indeterminate dinosaurs, bony fish, reptiles, turtles, bivalves, and gastropods. Together, these finds show that the formation preserves both vertebrate and invertebrate life, giving it paleontological importance despite the limited published context available here.
Hear stories like this as you drive
ExploreHere reads historical markers out loud as you pass them: over 325,000 stories across the US. No account needed.
4.7 · 800+ ratings · Free
FIND IT
Wyoming · United States