Drag to rotate the Utahraptor, scroll or pinch to zoom, and click a body part - the head, tail, an arm, or a leg - to read what fossils tell us about it. The panel beside the model carries the real figures.
Utahraptor stood about 1.5 m tall at the hip and stretched roughly 6 to 7 m from snout to tail - turn on the human figure to see it dwarfed the already-shipped Velociraptor and Deinonychus, making it the largest raptor known to have existed.
The colors and skin here are an artistic reconstruction; fossils preserve bone, not soft tissue or color. No feather fossils are directly preserved on Utahraptor itself, so this model does not render feathers - feathering is inferred only from closely related dromaeosaurids such as Velociraptor and Microraptor - and the measurements in the panel are the ones actually published.
Utahraptor 3D Viewer
freetoolonline.com editorial team
This page renders a Utahraptor as a 3D model you can spin in the browser - drag to rotate, scroll or pinch to zoom, toggle a 1.8 m person beside it for scale, and click the head, tail, an arm, or a leg to read a fact about that part.
Utahraptor lived in the Early Cretaceous, roughly 139 to 135 million years ago, in what is now the Cedar Mountain Formation (Yellow Cat Member) near Moab, Utah, USA. Published figures put an adult at about 6 to 7 m long and roughly 1.5 m tall at the hip - the largest dromaeosaurid ("raptor") known, dwarfing the already-shipped Velociraptor and Deinonychus. Weight estimates vary widely by method and specimen: the original 1993 description put smaller individuals around 280-360 kg, while later mass estimates for the largest known individuals run to roughly 500-700 kg. A large, sickle-shaped foot claw up to 24 cm long - the largest recorded for any dromaeosaurid - tipped the second toe of each foot. As an ambush predator, it hunted large herbivores such as ankylosaurs and iguanodontians.
James Kirkland, Robert Gaston, and Donald Burge named the genus in 1993; the species was originally called "ostrommaysi", honoring paleontologist John Ostrom - who also named Deinonychus and helped pioneer the idea that dinosaurs were active, bird-like animals - and Chris Mays, a research funder. A 2001 quarry discovery, nicknamed the "Utahraptor block", held the jumbled remains of at least seven individuals together: one adult, four juveniles, and a hatchling only about 1 m long, hinting that Utahraptor may have lived or hunted in social groups with some form of parental care.
| Measure | Figure |
|---|---|
| Length | about 6-7 m |
| Hip height | about 1.5 m |
| Weight | about 280-700 kg (280-360 kg by the original 1993 description; up to about 500-700 kg by later estimates for the largest individuals) |
| When it lived | 139-135 million years ago (Early Cretaceous, Berriasian-Valanginian) |
| Diet | Carnivore - an ambush predator that hunted large herbivores such as ankylosaurs and iguanodontians |
| Described | 1993 by James Kirkland, Robert Gaston, and Donald Burge; Cedar Mountain Formation, Yellow Cat Member (Utah, USA) |
Everything runs on your device with WebGL, so the model works without an account and without sending anything to a server. The skin tone and pattern are an artistic reconstruction, because fossils do not preserve color or soft tissue, and this model is not a fossil-accurate skeleton; no feather fossils are directly known from Utahraptor itself, so feathering is left unrendered rather than assumed for this genus. The numbers above are real published values, and ranges are shown because sources and estimation methods vary.
Frequently Asked Questions
How big was Utahraptor?
About 6 to 7 m long and roughly 1.5 m tall at the hip - the largest dromaeosaurid ("raptor") known, dwarfing the already-shipped Velociraptor and Deinonychus. Weight estimates depend on the specimen and method: about 280-360 kg by the original 1993 description, or up to roughly 500-700 kg by later estimates for the largest individuals. Turn on the human figure in the viewer to see the scale against a 1.8 m person.
Is Utahraptor the same dinosaur as Jurassic Park's Velociraptor?
No. Utahraptor is a real, separate genus described in 1993, the same year the film released, and it is far larger than either the real Velociraptor or the film's on-screen "Velociraptor" (which was really sized on Deinonychus). Utahraptor's own claim to fame is being the biggest raptor ever found, not a movie inspiration.
What did Utahraptor eat?
It was a carnivore, and evidence points to it being an ambush predator that hunted large herbivores such as ankylosaurs and iguanodontians rather than chasing down prey over long distances.
Did Utahraptor live in groups?
A 2001 quarry discovery, nicknamed the "Utahraptor block", held the jumbled remains of at least seven individuals together - one adult, four juveniles, and a hatchling only about 1 m long. That mix of ages in one place hints at social behavior or parental care, though it is not direct proof of pack hunting.
Where does the name Utahraptor come from?
The genus is named for Utah, where its fossils were found in the Cedar Mountain Formation near Moab. James Kirkland, Robert Gaston, and Donald Burge named it in 1993; the species was originally called "ostrommaysi", honoring paleontologist John Ostrom - who also named Deinonychus - and Chris Mays, who helped fund the research.
Is the model scientifically accurate?
The proportions follow published fossil figures, but the skin color and texture are an artistic reconstruction - fossils preserve bone, not soft tissue or color. No feather fossils are known from Utahraptor itself, so feathers are not rendered. The length, weight, and age figures shown are real published values, with ranges cited because sources and estimation methods vary.