Key Information
Utahraptor
| Species | Utahraptor ostrommaysi |
| Diet | Carnivore |
| Weight | 620 to 660 lb |
| Length | 16 to 18 ft |
| Height | 5 ft 9 inches |
| Timescale | Early Cretaceous |
| Classification | Theropoda > Dromaeosauridae > Dromaeosaurinae |
| Similar Species | Deinonychus, Dakotaraptor, Achillobator, Dromaeosaurus |
Learning Point
- Utahraptor has become a famous dromaeosaur dinosaur, and is the largest of the raptors. A number of fossils have been found, including smaller, juvenile animals, helping us understand the growth of this animal.
Project
- Draw a Utahraptor searching for food.
- Overview
- X-Ray
Location
| Confirmed | United States, North America |
Fun Facts
- The name Utahraptor comes from Latin words meaning “Utah’s thief“.
- The design of the legs and arms suggests that if this dinosaur was a predator, it was capable of balancing better than smaller dromaeosaurs.
- Utahraptor is the largest of the dromaeosaurs, and was likely feathered, though no proof of feathers has been found.
- Several fossils of Utahraptor have been found in one location around a herbivore fossil, with one suggestion being that they were drawn to the herbivore and got caught in quicksand, or something similar.
Past Lessons
| 43 | February 20, 2023 | (North America) |
| 170 | October 21, 2024 | (North America) |