Rock unit

Xiaoba

4 dinosaur genera in Omnisaura with fossils from the Xiaoba, oldest first. See all rock units.

Eubrontes(Hitchcock 1845)
Footprints and traces237–100.5 million years ago
GrallatorHitchcock 1858
Footprints and traces237–100.5 million years ago
BrontopodusFarlow et al. 1989
Footprints and traces174.7–85.7 million years ago
VelociraptorichnusZhen et al. 1994
Footprints and traces143.1–100.5 million years ago