About Amphicoelias fossils
Amphicoelias is a genus of sauropodomorphs, the long-necked group and its relatives. The database records 2 species of it: Amphicoelias altus and Amphicoelias brontodiplodocus.
The 3 finds on the map come from 2 countries. The United States has the most, with 2 (67%). Within the United States the most finds are in Colorado (1) and Wyoming (1).
The rock formation with the most finds is called Morrison, with 2. The rocks are 157.9 to 143.1 million years ago, in the Jurassic period.
Genus of reptiles (fossil). (Description from Wikidata, CC0.)
Read about Amphicoelias on Wikipedia.
- 3finds
- 2countries
- 157.9oldest, million years ago
- 143.1youngest, million years ago
Which countries have Amphicoelias fossils?
| Country | Finds | Share |
|---|---|---|
| United States | 2 | 67% |
| Zimbabwe | 1 | 33% |
US states
Rock formations that produced Amphicoelias
A formation is a named body of rock. These are the ones with the most Amphicoelias finds.
| Formation | Finds |
|---|---|
| Morrison | 2 |
| Kadzi | 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 Amphicoelias
Where was Amphicoelias found?
Amphicoelias fossils are recorded in the Paleobiology Database from United States and Zimbabwe. Most of the 3 finds on this map (2) are from United States. The rock formation with the most finds is the Morrison (2).
How old are Amphicoelias fossils?
Finds of Amphicoelias 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 Amphicoelias 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.