So sanh kich thuoc Ostafrikasaurus
Ostafrikasaurus 3D Viewer pairs the securely published holotype tooth (46 mm) with honest labels that body length and mass are not known from fossils - the Size vs human toggle uses a speculative 8 m reconstruction for scale only.
Ostafrikasaurus published figures
The Ostafrikasaurus facts panel and this table use the same real published measures:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Holotype tooth | about 46 mm (Buffetaut 2012) - securely published | far smaller than a human finger length at the crown |
| Body length | not known from fossils (tooth-only taxon); scene uses 8 m speculative reconstruction for Size vs human scale only | Size vs human ratio uses 8 m - labeled speculative, not measured |
| Body mass | not known from fossils; scene uses 1,150 kg speculative for display scale only | never presented as a fossil measurement |
| When it lived | Late Jurassic Tendaguru Formation Tanzania (boundary ages debated) | panel era Late Jurassic |
| Identity | Eric Buffetaut 2012 Ostafrikasaurus crassiserratus; spinosaurid tooth morphology | tooth-only taxon; full body is artistic reconstruction |
How the Ostafrikasaurus size-vs-human toggle stays honest
The Ostafrikasaurus model is drawn to a fixed on-screen length; Size vs human places a 1.8 m person at the true length ratio to the 8 m (speculative scale only) panel baseline. Tap Size vs human under the canvas - the comparison is proportional, not a decorative sticker.
What a person would see beside a Ostafrikasaurus
What a person would see beside the speculative reconstruction is a 1.8 m person at the 8 m display-scale ratio - with the holotype tooth at 46 mm and body size labeled speculative throughout. Turn on Size vs human and orbit.
What the Ostafrikasaurus size numbers are not
What these size numbers are not is a measured body length or mass from Ostafrikasaurus fossils. Only the holotype tooth about 46 mm is securely published. The 8 m and 1,150 kg figures are speculative reconstruction for scale only. Soft-tissue color is still artistic. This model is not a fossil-accurate skeleton. For controls see how to view Ostafrikasaurus in 3D. For AR trade-offs see Ostafrikasaurus 3D viewer vs AR apps.
Why trust these tools
- Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
- No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
- Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
- Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
- Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.