Rock unit

Ashdown Formation

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

MegalosaurusParkinson 1822
Bones201.4–113.2 million years ago
CetiosaurusOwen 1841
Bones174.7–119.57 million years ago
IguanodonMantell 1825
Bones154.8–100.5 million years ago
HylaeosaurusMantell 1833
Bones139.1–110.1 million years ago
PelorosaurusMantell 1850
Bones137.05–125.77 million years ago