Rock unit

Bull Run

5 dinosaur genera in Omnisaura with fossils from the Bull Run, oldest first. See all rock units.

AnomoepusHitchcock 1848
Footprints and traces237–161.5 million years ago
Eubrontes(Hitchcock 1845)
Footprints and traces237–100.5 million years ago
GrallatorHitchcock 1858
Footprints and traces237–100.5 million years ago
GregaripusWeems 1987
Footprints and traces227.3–205.7 million years ago
KayentapusWelles 1971
Footprints and traces227.3–161.5 million years ago