Genus · Tyrannosauridae · Cretaceous
Gorgosaurus
Named by Lambe 1914
Gorgosaurus lived 83.6–72.1 million years ago, during the Campanian stage of the Late Cretaceous. The Paleobiology Database lists 20 fossil records for it from 2 countries (Canada and United States) — 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: 65% of its records are from the Dinosaur Park Formation.
- Dromaeosaurus appears in 20% of the collections that hold Gorgosaurus; Troodon in 15%.
- Its stage range spans about 11.5 million years (36th longest of 99); it is the 21st best-recorded of the 32 theropods here.
1 accepted species
Gorgosaurus has a single accepted species in PBDB.
| Species | Named by | Records |
|---|---|---|
| Gorgosaurus libratus | Lambe 1914 | 15 |
Where it was found
20 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Alberta | 13 | 65% |
| Montana | 3 | 15% |
| South Dakota | 2 | 10% |
| North Carolina | 1 | 5% |
| Saskatchewan | 1 | 5% |
| Country | Records | Share |
|---|---|---|
| Canada | 14 | 70% |
| United States | 6 | 30% |
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 |
|---|---|---|---|
| Ornithomimus | 83.6–66 Ma | United States, Canada | 35 |
| Albertosaurus | 83.6–66 Ma | Canada, United States | 32 |
| Chirostenotes | 83.6–66 Ma | United States, Canada | 28 |
| Daspletosaurus | 83.6–72.1 Ma | United States, Canada | 21 |
| Velociraptor | 83.6–72.1 Ma | Mongolia, China | 20 |
| Struthiomimus | 83.6–66 Ma | Canada, United States | 18 |
| Stenonychosaurus | 83.6–66 Ma | Canada, United States | 14 |
| Dryptosaurus | 83.6–66 Ma | United States | 13 |
Also from these formations
Data: PBDB taxon 53193 · method