Dinosaur Fossil Map

Where was Apatosaurus found?

Apatosaurus fossils on the map: 67 finds in United States. 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 Apatosaurus fossils

Silhouette of Apatosaurus
Silhouette by Jagged Fang Designs, CC0 1.0 Universal, from PhyloPic

Apatosaurus is a genus of sauropodomorphs, the long-necked group and its relatives. The database records 2 species of it: Apatosaurus ajax and Apatosaurus louisae.

All 67 finds on the map are in United States. Within the United States the most finds are in Wyoming (28), Colorado (17), Utah (11), Oklahoma (4) and 4 more.

The rock formation with the most finds is called Morrison, with 67. The rocks are 157.9 to 143.1 million years ago, in the Jurassic period.

Genus of apatosaurs. (Description from Wikidata, CC0.)

Read about Apatosaurus on Wikipedia.

  • 67finds
  • 1country
  • 157.9oldest, million years ago
  • 143.1youngest, million years ago

Which countries have Apatosaurus fossils?

CountryFindsShare
United States67100%

US states

Rock formations that produced Apatosaurus

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

FormationFinds
Morrison67

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 Apatosaurus

Where was Apatosaurus found?

Apatosaurus fossils are recorded in the Paleobiology Database from United States. Most of the 67 finds on this map (67) are from United States. The rock formation with the most finds is the Morrison (67).

How old are Apatosaurus fossils?

Finds of Apatosaurus 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 Apatosaurus 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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