Genus · Camarasauridae · Jurassic
Camarasaurus
Named by Cope 1877
Camarasaurus lived 154.8–145 million years ago, during the Kimmeridgian to Tithonian stages of the Late Jurassic. The Paleobiology Database lists 138 fossil records for it from 4 countries (United States, Zimbabwe and Portugal and others) — the 4th most of the 99 genera on this site.
Where it sits in time
Key facts from the records
- Most of what is known comes from one rock unit: 97% of its records are from the Morrison Formation.
- It is one of the more widespread genera here: records from 4 countries, 11th of 99.
- Allosaurus appears in 61% of the collections that hold Camarasaurus; Stegosaurus in 43%.
- Its stage range spans about 9.8 million years (56th longest of 99); it is the best-recorded of the 19 sauropodomorphs here.
5 accepted species
| Species | Named by | Records |
|---|---|---|
| Camarasaurus grandis | Marsh 1877 | 13 |
| Camarasaurus lentus | Marsh 1889 | 9 |
| Camarasaurus supremus | Cope 1877 | 7 |
| Camarasaurus lewisi | Jensen 1988 | 1 |
| Morosaurus marchei | Sauvage 1898 | 1 |
Where it was found
138 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Wyoming | 66 | 48% |
| Colorado | 38 | 28% |
| Utah | 16 | 12% |
| South Dakota | 4 | 3% |
| New Mexico | 4 | 3% |
| Montana | 3 | 2% |
| Mashonaland North | 2 | 1% |
| Oklahoma | 2 | 1% |
| Country | Records | Share |
|---|---|---|
| United States | 134 | 97% |
| Zimbabwe | 2 | 1% |
| Portugal | 1 | 1% |
| Germany | 1 | 1% |
Records by stage
Well-dated records, by the stage of their mid-point age.
Depositional settings
Other sauropodomorphs of its time
Same group, overlapping stage range, not found in the same collections.
| Genus | Age | Country | Records |
|---|---|---|---|
| Giraffatitan | 154.8–145 Ma | Tanzania | 42 |
| Cetiosaurus | 168.2–125.77 Ma | United Kingdom, Morocco | 30 |
| Mamenchisaurus | 165.3–145 Ma | China, Mongolia | 24 |
| Brontosaurus | 149.2–145 Ma | United States | 23 |
| Brachiosaurus | 154.8–145 Ma | United States, Tanzania | 20 |
| Dicraeosaurus | 154.8–145 Ma | Tanzania, Zimbabwe | 19 |
| Omeisaurus | 165.3–145 Ma | China | 13 |
Also from these formations
Data: PBDB taxon 38697 · method