Troodon Size Comparison
Troodon 3D Viewer pairs published figures for a small Late Cretaceous European theropod with a 1.8 m person - length panel baseline 2.4 m and mass panel baseline 50 kg - with length and mass ranges disclosed separately.
Troodon published figures
The Troodon facts panel and this table use the same real published measures (length and mass ranges disclosed separately):
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 1-3 m across published sources (panel baseline 2.4 m); Size vs human uses 2.4 m | longer than a 1.8 m person end-to-end at the 2.4 m scale figure (~1.3x a person) |
| Hip height | about 0.6 m (panel baseline) | ~0.33x adult standing height - roughly hip height on a person |
| Weight | about 10-50 kg across published sources (panel baseline 50 kg) | far lighter than a human body mass at the panel baseline |
| When it lived | about 77-76.5 million years ago | Late Cretaceous (Campanian); Judith River Formation, Montana |
| Taxonomic note (disclosed) | Genus validity debated - type is a single tooth; related fossils assigned to Stenonychosaurus, Latenivenatrix, or Pectinodon; Varricchio et al. 2025 proposed neotype MOR 553 | named Joseph Leidy 1856; omnivore diet debated |
How the Troodon size-vs-human toggle stays honest
The Troodon 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 2.4 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 Troodon
What a person would see is a chicken-sized theropod whose panel length is 2.4 m - shorter than a 1.8 m person end-to-end - with hip height about 0.6 m in the panel silhouette. Turn on Size vs human and orbit beside a hind leg to feel how a small Late Cretaceous predator compares to you.
What the Troodon size numbers are not
What these size numbers are not is a blended composite: the panel headline figures (2.4 m / 0.6 m hip / 50 kg) are never treated as if every published estimate matched the panel baseline. Feather color in the viewer is still an artistic reconstruction. The genus validity debate is disclosed separately. This model is not a fossil-accurate skeleton. For the control walkthrough see how to view Troodon in 3D. For trade-offs versus phone AR apps see Troodon 3D viewer vs AR apps.
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