Titanoboa was the largest snake known from fossils. Vertebrae from Colombia support a representative length near 13 m and a mass greater than one tonne.
Length
about 13 m long
Height
body diameter up to roughly 0.65 m
Mass
about 1.14 tonnes
When
Paleocene - about 58-60 million years ago
ScaleCheck true-scale atlas prepared for a Titanoboa measurement comparison
All bars share one linear metre scale. Human height and animal body length use different orientations, noted on each detail page.
Interactive true-scale view
Titanoboa beside a 1.7 m human
The shared ground plane keeps 13 m and the human reference on one metre scale. Detailed models load progressively; labeled wireframes preserve scale where a model is pending.
Preparing the true-scale scene...
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Titanoboa13 mTrue-scale proxy
Human1.7 mDetailed 3D model
Wireframe subjects mark exact display dimensions where a detailed GLB is not yet available.
Human scale
What 13 metres feels like
Straightened out, Titanoboa would span about 7.6 reference-human heights. Its body could be thick enough to reach above an adult's knee even before feeding.
More than one number
Length, height and body mass
A 9 m upper-end anaconda comparison remains enormous, yet Titanoboa gains about four metres and roughly five times the mass used on this page.
Display length
13 m
Display height
0.65 m
Display mass
1.14 t
Evidence boundary
How certain is this size?
Snake length is inferred from vertebral dimensions and living relatives. The 13 m figure is a reconstruction, and exceptional upper estimates should not be treated as complete fossil measurements.
Why compare it
The question this animal answers
The comparison connects body size to climate and habitat: Titanoboa lived in a much warmer Paleocene rainforest where a cold-blooded predator could reach extraordinary dimensions.
