Nature · AMNH 680 · published reconstructed length
How long is a allosaurus fragilis?
A published comparison of theropod reconstructions gives Allosaurus fragilis specimen AMNH 680 a length of 9.7 meters. This scene uses that named large specimen reference.
≈ 9.7 m
Sourced measurement- Measurement
- Published specimen reconstruction · approximately 9.7 meters
- Subject or version
- AMNH 680 · published reconstructed length
- Using this value
- A starting value for the illustration, not a universal or confirmed height.
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A little more perspective
The 2021 Journal of Iberian Geology study identifies the 9.7-meter AMNH 680 estimate and attributes it to Campione and colleagues. Other specimens and reconstruction methods give different lengths. The Natural History Museum also lists 9.7 meters for Allosaurus, but that genus-level figure does not make every species or individual the same size.
The side view shows the paired brow ridges, three-fingered hands and long balancing tail. Its whole snout-to-tail outline carries the length reference. Scale pattern, coloration, soft tissues and exact posture are interpretive; the fossil-based length should not be mistaken for a measurement of those features.
Quick facts
A published comparison of theropod reconstructions gives Allosaurus fragilis specimen AMNH 680 a length of 9.7 meters. This scene uses that named large specimen reference.
For a presentation or a research note, include the subject, the measurement definition, and the assumed measurement. A picture alone cannot explain those choices. The comparison guide explains how to export an image and its source notes together.
Sources and measurement notes
- Journal of Iberian Geology: Digital 3D models of theropods, Allosaurus specimen comparisons
- Natural History Museum: Allosaurus genus length
The 9.7-meter reconstruction is tied to specimen AMNH 680.
Source review recorded . Maintained by Ishan Karunaratne. Suggest a correction with a source and the exact measurement being compared.