Genus · Tyrannosauridae · Cretaceous
Albertosaurus
Named by Osborn 1905
Albertosaurus lived 83.6–66 million years ago, during the Campanian to Maastrichtian stages of the Late Cretaceous. The Paleobiology Database lists 32 fossil records for it from 3 countries (Canada, United States and Mexico) — the 36th most of the 99 genera on this site.
Where it sits in time
Key facts from the records
- Its records are spread over at least 8 formations; the largest share, 59%, is from the Horseshoe Canyon Formation.
- It is one of the more widespread genera here: records from 3 countries, 26th of 99.
- Edmontosaurus appears in 16% of the collections that hold Albertosaurus; Troodon in 16%.
- Its stage range spans about 17.6 million years (15th longest of 99); it is the 12th best-recorded of the 32 theropods here.
1 accepted species
Albertosaurus has a single accepted species in PBDB.
| Species | Named by | Records |
|---|---|---|
| Albertosaurus sarcophagus | Osborn 1905 | 17 |
Where it was found
32 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Alberta | 21 | 66% |
| New Mexico | 2 | 6% |
| Saskatchewan | 2 | 6% |
| Colorado | 2 | 6% |
| Sonora | 2 | 6% |
| Wyoming | 1 | 3% |
| Montana | 1 | 3% |
| Missouri | 1 | 3% |
| Country | Records | Share |
|---|---|---|
| Canada | 23 | 72% |
| United States | 7 | 22% |
| Mexico | 2 | 6% |
Records by stage
Well-dated records, by the stage of their mid-point age.
Depositional settings
Other theropods of its time
Same group, overlapping stage range, not found in the same collections.
| Genus | Age | Country | Records |
|---|---|---|---|
| Tyrannosaurus | 72.1–66 Ma | United States, Canada | 85 |
| Tarbosaurus | 72.1–66 Ma | Mongolia, China | 56 |
| Dromaeosaurus | 83.6–66 Ma | Canada, United States | 48 |
| Ornithomimus | 83.6–66 Ma | United States, Canada | 35 |
| Gallimimus | 72.1–66 Ma | Mongolia, Uzbekistan | 30 |
| Masiakasaurus | 72.1–66 Ma | Madagascar | 29 |
| Chirostenotes | 83.6–66 Ma | United States, Canada | 28 |
| Majungasaurus | 72.1–66 Ma | Madagascar | 25 |
Also from these formations
Data: PBDB taxon 38607 · method