Genus · Brachiosauridae · Jurassic
Brachiosaurus
Named by Riggs 1903
Brachiosaurus lived 154.8–145 million years ago, during the Kimmeridgian to Tithonian stages of the Late Jurassic. The Paleobiology Database lists 20 fossil records for it from 4 countries (United States, Tanzania and Zimbabwe and others) — the 61st 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: 80% of its records are from the Morrison Formation.
- It is one of the more widespread genera here: records from 4 countries, 11th of 99.
- Camarasaurus appears in 68% of the collections that hold Brachiosaurus; Allosaurus in 63%.
- Its stage range spans about 9.8 million years (56th longest of 99); it is the 12th best-recorded of the 19 sauropodomorphs here.
1 accepted species
Brachiosaurus has a single accepted species in PBDB.
| Species | Named by | Records |
|---|---|---|
| Brachiosaurus altithorax | Riggs 1903 | 2 |
Where it was found
20 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Colorado | 8 | 40% |
| Wyoming | 5 | 25% |
| Lindi | 2 | 10% |
| Utah | 2 | 10% |
| Mashonaland North | 1 | 5% |
| Oklahoma | 1 | 5% |
| Nordrhein-Westfalen | 1 | 5% |
| Country | Records | Share |
|---|---|---|
| United States | 16 | 80% |
| Tanzania | 2 | 10% |
| Zimbabwe | 1 | 5% |
| Germany | 1 | 5% |
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 |
| Barosaurus | 154.8–145 Ma | United States, Zimbabwe | 19 |
| Dicraeosaurus | 154.8–145 Ma | Tanzania, Zimbabwe | 19 |
| Omeisaurus | 165.3–145 Ma | China | 13 |
Also from these formations
Data: PBDB taxon 38677 · method