Protoceratops Size Comparison
Protoceratops 3D Viewer pairs published Late Cretaceous figures with a 1.8 m person on screen - length about 1.8-2.5 m (Size vs human uses 2 m), weight about 62-245 kg across sources - so the small hornless ceratopsian scale stays readable at a glance.
Protoceratops published figures
The Protoceratops facts panel and this table disclose published ranges rather than one invented single number; the Size vs human control uses 2 m as the length scale ratio:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 1.8-2.5 m across sources (AMNH 1.8 m; Wikipedia up to 2-2.5 m); Size vs human uses 2 m | ~1.1x a person end-to-end at the 2 m scale figure |
| Weight | about 62-245 kg across sources (AMNH ~225 kg; Wikipedia 62-104 kg; other sources ~180 kg) | shown as a cross-source range, not one settled point |
| Head | modest bony frill; parrot-like beak; no brow or nose horns (feats.horns false) | contrast with shipped Triceratops horns / Pachyrhinosaurus bosses |
| Fighting Dinosaurs | 1971 fossil MPC-D 100/512 locked with Velociraptor MPC-D 100/25 | fact-panel differentiator, not a Size vs human input |
| When it lived | ~75-71 million years ago (Campanian), Djadokhta Formation, Mongolia; Shackelford 1922; Granger & Gregory 1923 (AMNH 6251) | much smaller than shipped Late Cretaceous ceratopsians |
How the Protoceratops size-vs-human toggle stays honest
The Protoceratops 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 (2 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 about 1.8-2.5 m across sources, so the toggle picks one clear mid-range scale inside that disclosed range.
What a person would see beside a Protoceratops
What a person would see is a sheep-to-pig-scale ceratopsian with a modest frill and no horns - turn on the person in the viewer and orbit beside the body to feel how compact it sits relative to Triceratops-scale siblings. A license-clean CC-BY-SA 4.0 glTF may swap in after first paint; procedural skin color remains an artistic choice if the model load fails.
What the Protoceratops size numbers are not
What these size numbers are not is a claim of one precise length or weight: the Protoceratops size comparison discloses the about 1.8-2.5 m / 62-245 kg cross-source ranges and uses 2 m only for the Size vs human scale; it does not claim brow or nose horns, does not invent soft-tissue accuracy for the procedural body, and this is not a win/lose game. For the control walkthrough see how to view Protoceratops in 3D. For trade-offs versus phone AR apps see Protoceratops 3D viewer vs AR apps.
Other dinosaurs to compare
Other dinosaurs in the collection make useful size comparisons too: for the much larger horned relative see the Triceratops 3D Viewer, or for the Fighting Dinosaurs partner see the Velociraptor 3D Viewer.
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