Dilophosaurus Size Comparison
Dilophosaurus 3D Viewer pairs published Early Jurassic theropod figures with a 1.8 m person on screen - length about 6.03 m for holotype UCMP 37302 (largest known near about 7 m; Size vs human uses about 6.03 m) and weight about 283 kg (largest known up to about 400 kg) - so the scale gap stays readable at a glance.
Dilophosaurus published figures
The Dilophosaurus facts panel and this table disclose published ranges rather than one invented single number; the Size vs human control uses about 6.03 m as the length scale ratio:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 6.03 m holotype UCMP 37302; largest known specimen near about 7 m; Size vs human uses about 6.03 m | ~3.4x a person end-to-end at the 6.03 m scale figure |
| Weight | about 283 kg holotype; largest known up to about 400 kg | sources disagree by specimen - shown as a range |
| Signature anatomy | paired thin arched nasal/lacrimal crests (feats.crest twin-fin rewrite); Jurassic Park neck frill and venom spit are fiction with no fossil support; Kayenta Formation, northern Arizona | crests sit on the head mesh; no deployable frill in the viewer |
| When it lived | 195-184 million years ago (often cited around 193 Mya) | Early Jurassic; Samuel Welles 1954 as Megalosaurus species, genus Dilophosaurus in 1970 |
How the Dilophosaurus size-vs-human toggle stays honest
The Dilophosaurus model is drawn to a fixed on-screen length so it fits the canvas; the Size vs human control then places a 1.8 m person at the true length ratio used by the viewer (about 6.03 m). Tap Size vs human under the canvas to show or hide the scale figure - the comparison is proportional, not a decorative sticker. Published length still spans the holotype 6.03 m with largest known near about 7 m, so the toggle picks one clear scale inside that disclosed range.
What a person would see beside a Dilophosaurus
What a person would see is a bipedal Early Jurassic theropod with twin thin crests and no movie neck frill - turn on the person in the viewer and orbit beside a hind leg to feel how the horizontal-back posture sits relative to the scale figure. Skin color and exact crest covering are an artistic reconstruction; the viewer does not invent venom spit.
What the Dilophosaurus size numbers are not
What these size numbers are not is a claim of one precise length or weight: the Dilophosaurus size comparison discloses the holotype and largest-known ranges and uses about 6.03 m only for the Size vs human scale; it does not invent a hip-height figure the skill does not carry, does not invent a neck frill or venom spit, no free-licensed Dilophosaurus glTF is re-hosted yet so the viewer stays procedural with the twin-crest rewrite, and this is not a win/lose game. For the control walkthrough see how to view Dilophosaurus in 3D. For trade-offs versus phone AR apps see Dilophosaurus 3D viewer vs AR apps.
Other dinosaurs to compare
Other dinosaurs in the collection make useful size comparisons too: Dilophosaurus is an Early Jurassic twin-crested theropod, so for a Late Jurassic Morrison Formation apex predator see the Allosaurus 3D Viewer, or for a Late Cretaceous horned abelisaurid see the Carnotaurus 3D Viewer.
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