Where was Ceratosaurus found?

Ceratosaurus (Ceratosaurus ("horned lizard")) fossils on the map: 29 finds in 4 countries. The dashed box outlines the area they cover.

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Age of the rocks252 to 66 million years ago
Group

Shows every find whose age range overlaps the window. To look up one dinosaur, use the search box on the map.

Key
  • Triassic 251.9 to 201.4 million years ago
  • Jurassic 201.4 to 145 million years ago
  • Cretaceous 145 to 66 million years ago
  • Spans two periods The find’s age range straddles a boundary

How to read the dots. Each dot is one find recorded in the Paleobiology Database, coloured by the period of its rocks. Finds marked approximate have only a rough position in the database, so the dot can sit some way from the real site.

About Ceratosaurus fossils

Silhouette of Ceratosaurus
Silhouette by Tasman Dixon, CC0 1.0 Universal, from PhyloPic

Ceratosaurus (Ceratosaurus ("horned lizard")) is a genus of theropods, the mostly meat-eating group. The database records one species of it: Ceratosaurus nasicornis.

The 29 finds on the map come from 4 countries. The United States has the most, with 19 (66%). Within the United States the most finds are in Colorado (6), Wyoming (6), Utah (5) and Oklahoma (2).

The rock formation with the most finds is called Morrison, with 19. The rocks are 157.9 to 143.1 million years ago, in the Jurassic period.

Genus of theropod dinosaur. (Description from Wikidata, CC0.)

Read about Ceratosaurus on Wikipedia.

  • 29finds
  • 4countries
  • 157.9oldest, million years ago
  • 143.1youngest, million years ago

Which countries have Ceratosaurus fossils?

CountryFindsShare
United States1966%
Portugal517%
Tanzania310%
Uruguay27%

US states

Rock formations that produced Ceratosaurus

A formation is a named body of rock. These are the ones with the most Ceratosaurus finds.

FormationFinds
Morrison19
Lourinhã3
Tendaguru3
Tacuarembó2
Alcobaça1
Praia da Amoreira-Porto Novo1

Other dinosaurs found in United States

More to explore

Before you go fossil hunting. A dot shows where a find was recorded, not where you may dig. Many fossil sites are on private or protected land and collecting rules differ by country. Check the rules before collecting and never dig on protected sites.

Questions about Ceratosaurus

Where was Ceratosaurus found?

Ceratosaurus fossils are recorded in the Paleobiology Database from United States, Portugal, Tanzania and Uruguay. Most of the 29 finds on this map (19) are from United States. The rock formation with the most finds is the Morrison (19).

How old are Ceratosaurus fossils?

Finds of Ceratosaurus on this map date from 157.9 to 143.1 million years ago, which is the Jurassic period. Ages are ranges, because rock layers are dated to a stage and not to a single year.

Where can I see Ceratosaurus fossils near me?

Open the map and press Near me to list the nearest dinosaur finds and the most notable dinosaurs found around you. Remember that a dot shows where scientists recorded a find, not where you can dig: many fossil sites are on private or protected land, so check the rules before collecting and never dig on protected sites.

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