Pronounced - YOU-tah-RAP-tor Named By - James I. Kirkland, Robert Gaston and Donald
Burge When Named - 1993 |
DIET: |
Carnivore (meat-eater) |
SIZE: |
Length - 16-23 feet (5-7 m) long Height - About 6 ft (1.7 m) tall at the hips Weight
- Roughly 1 ton |
WHEN IT LIVED: |
Cretaceous period, about 125 million years ago |
WHERE IT LIVED: |
Fossils have been found in the Cedar Mountain Formation of central Utah, USA, North America. |
FOSSILS: |
A fragmentary skeleton was found, including sharp hand and foot claws. |
CLASSIFICATION: |
- Kingdom Animalia (animals)
- Phylum Chordata (having a hollow nerve chord ending in a brain)
- Class Archosauria (diapsids with socket-set teeth, etc.)
- Order Saurischia - lizard-hipped dinosaurs
- Suborder Theropoda - bipedal carnivores
- Tetanura - advanced theropods with three fingers
- Infraorder Coelurosauria - lightly-built fast-running predators with hollow bones and large brains
- Family Deinonychosauria/Dromaeosauridae
- Genus Utahraptor
- Species U. ostrummaysorum (type species named by James I. Kirkland, Robert Gaston and Donald Burge, 1993)
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INTERESTING FACTS: |
Utahraptor's second toe had a 9-15 inch (23-38 cm) retractible, sickle-shaped claw; the other toes had smaller
claws. Utahraptor was twice as large as Deinonychus. |
LINKS: |
A detailed page on Utahraptor. A Utahraptor printout to color. |
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