Where was Deinonychus found?

Deinonychus fossils on the map: 47 finds in 2 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 Deinonychus fossils

Silhouette of Deinonychus
Silhouette by Caleb M. Gordon, CC BY 4.0, from PhyloPic

Deinonychus is a genus of theropods, the mostly meat-eating group. The database records one species of it: Deinonychus antirrhopus.

The 47 finds on the map come from 2 countries. The United States has the most, with 46 (98%). Within the United States the most finds are in Montana (27), Wyoming (11), Oklahoma (4), Utah (2) and 2 more.

The rock formation with the most finds is called Cloverly, with 38. The rocks are 143.1 to 93.9 million years ago, in the Cretaceous period.

Extinct genus of dromaeosaurs. (Description from Wikidata, CC0.)

Read about Deinonychus on Wikipedia.

  • 47finds
  • 2countries
  • 143.1oldest, million years ago
  • 93.9youngest, million years ago

10% of these finds are marked approximate in the database, so their dots may sit some way from the real site.

Which countries have Deinonychus fossils?

CountryFindsShare
United States4698%
Brazil12%

US states

Rock formations that produced Deinonychus

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

FormationFinds
Cloverly38
Antlers4
Cedar Mountain2
Arundel Clay1
Holly Creek1
Sousa1

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 Deinonychus

Where was Deinonychus found?

Deinonychus fossils are recorded in the Paleobiology Database from United States and Brazil. Most of the 47 finds on this map (46) are from United States. The rock formation with the most finds is the Cloverly (38).

How old are Deinonychus fossils?

Finds of Deinonychus on this map date from 143.1 to 93.9 million years ago, which is the Cretaceous period. Ages are ranges, because rock layers are dated to a stage and not to a single year.

Where can I see Deinonychus 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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