Megalosaurus Size Comparison
Megalosaurus 3D Viewer pairs published Middle Jurassic figures with a 1.8 m person on screen - length about 6-9 m (Size vs human uses 7 m), mass about 0.7-1.1 tonnes - so the first-named dinosaur scale stays readable at a glance.
Megalosaurus published figures
The Megalosaurus facts panel and this table disclose published ranges rather than one invented single number; the Size vs human control uses 7 m as the length scale ratio:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 6-9 m (NHM about 6 m; Owen historically about 9 m; Paul 2010 about 6 m); Size vs human uses 7 m | ~3.9x a person end-to-end at the 7 m scale figure |
| Hip height | about 2-2.5 m at the hips for a large adult | ~1.1-1.4x adult standing height |
| Weight | about 0.7-1.1 tonnes (Paul about 700 kg; Benson femur-based about 0.9 t) | shown as a cross-source range, not one settled midpoint |
| When it lived | ~168-166 million years ago (Middle Jurassic, Bathonian), England; carnivore; William Buckland 1824 (M. bucklandii) - first valid dinosaur genus | much earlier than Late Cretaceous theropod siblings on the hub |
How the Megalosaurus size-vs-human toggle stays honest
The Megalosaurus 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 (7 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 6-9 m across sources, so the toggle picks one clear mid-range scale inside that disclosed range.
What a person would see beside a Megalosaurus
What a person would see is a Middle Jurassic theropod whose body length at the 7 m scale still clearly outspans a 1.8 m adult - turn on the person in the viewer and orbit beside a hind leg. A license-clean Public Domain glTF may swap in after first paint; procedural skin color remains an artistic choice if the model load fails. This model is not a fossil-accurate skeleton and does not claim Victorian 20 m lizard reconstructions were accurate.
What the Megalosaurus size numbers are not
What these size numbers are not is a claim of one precise length or weight: the Megalosaurus size comparison discloses the about 6-9 m / 0.7-1.1 tonne ranges and uses 7 m only for the Size vs human scale; it does not revive Victorian oversize lizard reconstructions, 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 Megalosaurus in 3D. For trade-offs versus phone AR apps see Megalosaurus 3D viewer vs AR apps.
Other dinosaurs to compare
Other dinosaurs in the collection make useful size comparisons too: for a later Jurassic theropod with a nasal horn see the Ceratosaurus 3D Viewer, or for a famous Late Cretaceous theropod see the Tyrannosaurus rex 3D Viewer.
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