Mosasaurus Size Comparison
Mosasaurus 3D Viewer pairs published marine-reptile figures with a 1.8 m person on screen - length about 11-17 m (catalogue ~17 m) and weight up to about 10 tonnes - so the scale gap stays readable at a glance.
Mosasaurus published figures
The Mosasaurus 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 11-17 m (catalogue ~17 m) | ~6.1x to ~9.4x a person end-to-end; model uses ~9.4x |
| Catalogue height | about 2.2 m | ~1.2x adult standing height |
| Weight | up to about 10 tonnes | many times a human body mass |
| When it lived | 82-66 million years ago | Late Cretaceous |
| Group | Marine reptile (mosasaur) | not a dinosaur |
How the Mosasaurus size-vs-human toggle stays honest
The Mosasaurus 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 ~17 m figure (within the published 11-17 m range). 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 Mosasaurus
What a person would see is a scale gap of nearly nine body lengths: from snout to finned tip a large Mosasaurus can span roughly 17 m in the catalogue model, about nine body lengths of a 1.8 m person laid end to end. Turn on Size vs human and orbit beside a flipper to feel how far the tail extends past the scale figure while the animal floats on the water plane.
What the Mosasaurus size numbers are not
What these size numbers are not is a land-dinosaur estimate: the Mosasaurus size comparison uses published bone-based estimates for a swimming mosasaur - not a land dinosaur - and skin color in the viewer is still an artistic reconstruction. For the control walkthrough see how to view Mosasaurus in 3D. For trade-offs versus phone AR apps see Mosasaurus 3D viewer vs AR apps.
Other dinosaurs to compare
Other dinosaurs in the collection make useful size comparisons too: Mosasaurus is a marine reptile rather than a land dinosaur, so for a giant land herbivore of similar overall length, see the Brachiosaurus 3D Viewer, or for a much smaller, agile land predator, see the Velociraptor 3D Viewer.
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