AverostraCeratosauriaCeratosauridaeDinosauriaEusaurischiaLate JurassicNeoceratosauriaNeotheropodaNorth AmericaSaurischiaTheropoda

Ceratosaurus nasicornis

Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.


Dinosaur: Ceratosaurus nasicornis

Jurassic: 149.2–145 Ma
Type: Theropod

Length*:6.9 m22.6 ft
Weight*:1000 kg2,205 lb
Speed:36 km/h22 mph
ESR: 3.5 / 4 (estimated size reliability)
*The largest known specimen


Period

Epoch: Late Jurassic
Stage: Early Tithonian
Years: 149.2–145 Ma

Details

Status: valid
Author: Marsh
Year: 1884

Distribution

Area: North America
Country: USA
Region: Colorado, Utah
Formation: Morrison


Locations


Sources

Material: Almost complete skull and partial skeleton, referred several (?) other individuals.
References: Carrano, M. T., & Sampson, S. D. (2008). The Phylogeny of Ceratosauria (Dinosauria: Theropoda).

________________________

If you are interested in Excel Professional version of Dinosaur or Pterosaur Database, write to us


Pterosaur Database