How to View Utahraptor in 3D
Utahraptor 3D Viewer runs an Early Cretaceous Utahraptor - the largest dromaeosaurid (raptor) ever found - in your browser. Drag to rotate, scroll or pinch to zoom, toggle a 1.8 m person for scale, and click a body part for a fossil-sourced fact.
Open the Utahraptor page and take the camera
Open the Utahraptor 3D Viewer and wait for the facts panel to fill. When the status line says you can drag, orbit the Utahraptor with the pointer and zoom with the scroll wheel or a two-finger pinch. Fullscreen expands the wrapper so the controls stay visible beside the scene.
Use the four Utahraptor controls under the canvas
Under the Utahraptor canvas, four controls handle view and scale:
- Fullscreen - fills the display while keeping the buttons visible
- Stop rotation / Auto-rotate - freezes or resumes auto-spin
- Idle motion - adds subtle breathing and leg sway; tap again for Stand still
- Size vs human - shows a 1.8 m person at the honest length ratio used by the viewer (6.1 m within the published about 6-7 m range)
Read the Utahraptor facts panel and click a body part
The Utahraptor facts panel lists length about 6-7 m (Size vs human uses 6.1 m; NHMU about 20 ft), hip height roughly 1.5 m, weight about 280-700 kg depending on specimen and method (Kirkland et al. 1993 about 280-360 kg for smaller individuals; later estimates for the largest known run to about 500-700 kg), a sickle-shaped retractable foot claw up to 24 cm (9.5 in) - the largest recorded for any dromaeosaurid - the ~139-135 Mya Early Cretaceous window (Berriasian-Valanginian) in the Cedar Mountain Formation (Yellow Cat Member) near Moab, Utah, USA, and naming history - James Kirkland, Robert Gaston, and Donald Burge named the genus in 1993; the species was originally called ostrommaysi, honoring John Ostrom and Chris Mays, later emended to ostrommaysorum. It dwarfs the already-shipped Velociraptor (about 2 m) and Deinonychus (about 3.3-3.4 m). A 2001 quarry find nicknamed the Utahraptor block held remains of at least seven individuals - one adult, four juveniles, and a hatchling about 1 m long - hinting at possible social behavior or parental care, not a settled pack-hunting fact. Diet is ambush predation on large herbivores such as ankylosaurs and iguanodontians. Feathering is inferred from related dromaeosaurids (Velociraptor, Microraptor), not directly observed on Utahraptor, and is left unrendered. A short click - not a drag - on head, body, neck, tail, leg, or arm surfaces a short fossil fact; the sickle claw is disclosed in the facts panel and prose, not as a separate click target. Skin color is an artistic reconstruction; the model is procedural with no free-licensed Utahraptor glTF re-hosted yet.
What the Utahraptor how-to guide is not
The Utahraptor how-to guide is a controls walkthrough for the in-browser viewer only - it does not place the model in your room (no AR), does not claim soft-tissue or color accuracy, does not invent one precise weight beyond the cited 280-700 kg range, does not claim pack-hunting or parental care is confirmed, does not claim Utahraptor was the model for Jurassic Park's on-screen Velociraptor, does not invent a dedicated click-the-claw interaction, does not invent a glTF credit, and does not invent game score or win states. For the size story see Utahraptor size comparison. For trade-offs versus phone AR apps see Utahraptor 3D viewer vs AR apps.
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