About Pachycephalosaurus fossils
Pachycephalosaurus is a genus of ornithischians, the horned, armoured and duck-billed group. The database records one species of it: Pachycephalosaurus wyomingensis.
The 34 finds on the map come from 2 countries. The United States has the most, with 32 (94%). Within the United States the most finds are in Montana (16), Wyoming (9), South Dakota (5), Colorado (1) and 1 more.
The rock formation with the most finds is called Hell Creek, with 19. The rocks are 83.6 to 66 million years ago, in the Cretaceous period.
Genus of ornithischian dinosaur. (Description from Wikidata, CC0.)
Read about Pachycephalosaurus on Wikipedia.
- 34finds
- 2countries
- 83.6oldest, million years ago
- 66youngest, 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 Pachycephalosaurus fossils?
| Country | Finds | Share |
|---|---|---|
| United States | 32 | 94% |
| Canada | 2 | 6% |
US states
- Montana (16)
- Wyoming (9)
- South Dakota (5)
- Colorado (1)
- North Dakota (1)
Rock formations that produced Pachycephalosaurus
A formation is a named body of rock. These are the ones with the most Pachycephalosaurus finds.
| Formation | Finds |
|---|---|
| Hell Creek | 19 |
| Lance | 9 |
| Ferris | 3 |
| Denver | 1 |
| Dinosaur Park | 1 |
| Scollard | 1 |
Other dinosaurs found in United States
- Richardoestesia (239)
- Triceratops (166)
- Saurornitholestes (148)
- Allosaurus (147)
- Paronychodon (141)
- Camarasaurus (138)
- Iguanodon (132)
- Troodon (103)
- Stegosaurus (86)
- Edmontosaurus (85)
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 Pachycephalosaurus
Where was Pachycephalosaurus found?
Pachycephalosaurus fossils are recorded in the Paleobiology Database from United States and Canada. Most of the 34 finds on this map (32) are from United States. The rock formation with the most finds is the Hell Creek (19).
How old are Pachycephalosaurus fossils?
Finds of Pachycephalosaurus on this map date from 83.6 to 66 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 Pachycephalosaurus 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.