Brontotherium Size Comparison
Brontotherium 3D Viewer pairs published brontothere figures with a 1.8 m person - length about 4.6 m, mass about 3.5 tonnes - so the scale gap stays readable at a glance.
Brontotherium published figures
The Brontotherium facts panel and this table use the same real published measures (a range where sources disagree):
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 4.6-5 m (panel baseline 4.6 m) | ~2.6x a person end-to-end; Size vs human uses 4.6 m |
| Shoulder height | about 2.5 m | taller than adult standing height |
| Weight | about 2-5 tonnes (panel baseline 3.5 t / 3500 kg) | many times a human body mass |
| When it lived | about 38-34 million years ago | Late Eocene; North America |
| Fossil note | Historical Brontotherium; often Megacerops | brontothere mammal with blunt Y-shaped nasal horns; not a dinosaur |
How the Brontotherium size-vs-human toggle stays honest
The Brontotherium 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 to the catalogue about 4.6 m panel baseline. Tap Size vs human under the canvas to show or hide the scale figure - the comparison is proportional, not a decorative sticker.
What a person would see beside a Brontotherium
What a person would see is a bulky horned brontothere mammal whose panel length is about 4.6 m - a little more than two and a half body lengths of a 1.8 m person laid end to end - with shoulders about 2.5 m high. Turn on Size vs human and orbit beside the blunt Y-shaped nasal horns to feel the mammal-line scale, not a dinosaur outline.
What the Brontotherium size numbers are not
What these size numbers are not is a single tight mass census: mass stays the disclosed about 2-5 tonnes range with panel baseline 3.5 tonnes. Soft-tissue color in the viewer is still an artistic reconstruction. Brontotherium is not a dinosaur. For the control walkthrough see how to view Brontotherium in 3D. For trade-offs versus phone AR apps see Brontotherium 3D viewer vs AR apps.
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