Rock unit

Jiaguan

7 dinosaur genera in Omnisaura with fossils from the Jiaguan, 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
CaririchniumLeonardi 1984
Footprints and traces143.1–93.9 million years ago
MinisauripusZhen et al. 1994
Footprints and traces143.1–100.5 million years ago
VelociraptorichnusZhen et al. 1994
Footprints and traces143.1–100.5 million years ago
YangtzepusYoung 1960
Footprints and traces137.05–100.5 million years ago