Deinonychus vs Utahraptor
A detailed side-by-side comparison of Deinonychus and Utahraptor, covering size, diet, classification, geologic period, and discovery history.
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| Property | Deinonychus | Utahraptor |
|---|---|---|
| Scientific Name | Deinonychus antirrhopus | Utahraptor ostrommaysi |
| Classification | Dromaeosauridae | Dromaeosauridae |
| Period | Cretaceous Early | Cretaceous Early |
| Diet | Carnivore | Carnivore |
| Length | 3.4 m | 5.5 m |
| Height | 0.9 m | 1.8 m |
| Weight | 73 kg | 500 kg |
| Discovery Year | 1969 | 1993 |
| Discovery Location | Montana, USA | Arches National Park, Utah, USA |
| Named By | John Ostrom | James Kirkland et al. |
Size Comparison
Deinonychus
3.4 m
about the size of a human adult
Utahraptor
5.5 m
roughly the length of a large SUV
Weight Comparison
Deinonychus
73 kg
about 1 adult humans
Utahraptor
500 kg
about 7 adult humans
Timeline Comparison
Deinonychus
Utahraptor
Deinonychus and Utahraptor both lived during the Cretaceous Early period and may have shared the same habitats.
Diet Comparison
Deinonychus
CarnivoreDeinonychus was a meat-eating predator, hunting other animals for food.
Utahraptor
CarnivoreUtahraptor was a meat-eating predator, hunting other animals for food.
Classification Comparison
Deinonychus
Utahraptor
Both dinosaurs share a common ancestor within the Dromaeosauridae clade.
Key Differences
- Utahraptor (5.5 m, ~500 kg) was roughly 7ร heavier than Deinonychus (3.4 m, ~73 kg).
- Both were dromaeosaurids with large sickle-shaped toe claws, but Utahraptor's claw reached 22 cm โ among the largest of any known raptor.
- Deinonychus's discovery in 1969 sparked the Dinosaur Renaissance by suggesting dinosaurs were warm-blooded and active; Utahraptor was described in 1993.
- Deinonychus lived in the Early Cretaceous of Montana; Utahraptor in the Early Cretaceous of Utah โ they may have overlapped geographically.
- Utahraptor is the closest real-world match to the oversized Jurassic Park Velociraptors; Deinonychus was the actual scientific inspiration for those depictions.
Did You Know?
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Utahraptor was about 1.6x longer than Deinonychus.
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Utahraptor weighed roughly 7x more than Deinonychus.
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Both Deinonychus and Utahraptor were carnivores.
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Both dinosaurs lived during the Cretaceous Early period and may have coexisted.
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Deinonychus was discovered 24 years earlier, in 1969.
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Both belong to the Dromaeosauridae clade, making them relatively close relatives.
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