Genus · Dromaeosauridae · Cretaceous
Deinonychus
Named by Ostrom 1969
Deinonychus lived 121.4–113.2 million years ago, during the Aptian stage of the Early Cretaceous. The Paleobiology Database lists 47 fossil records for it from 2 countries (United States and Brazil) — the 20th 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: 81% of its records are from the Cloverly Formation.
- Tenontosaurus appears in 54% of the collections that hold Deinonychus; Acrocanthosaurus in 13%.
- Its stage range spans about 8.2 million years (74th longest of 99); it is the 8th best-recorded of the 32 theropods here.
1 accepted species
Deinonychus has a single accepted species in PBDB.
| Species | Named by | Records |
|---|---|---|
| Deinonychus antirrhopus | Ostrom 1969 | 35 |
Where it was found
47 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Montana | 27 | 57% |
| Wyoming | 11 | 23% |
| Oklahoma | 4 | 9% |
| Utah | 2 | 4% |
| Paraíba | 1 | 2% |
| Arkansas | 1 | 2% |
| Maryland | 1 | 2% |
| Country | Records | Share |
|---|---|---|
| United States | 46 | 98% |
| Brazil | 1 | 2% |
Records by stage
Well-dated records, by the stage of their mid-point age.
Other theropods of its time
Same group, overlapping stage range, not found in the same collections.
| Genus | Age | Country | Records |
|---|---|---|---|
| Megalosaurus | 168.2–113.2 Ma | United Kingdom, France | 60 |
| Carcharodontosaurus | 121.4–93.9 Ma | Algeria, Morocco | 44 |
Also from these formations
Data: PBDB taxon 38562 · method