How to View Tylosaurus in 3D
Tylosaurus 3D Viewer runs a Late Cretaceous Western Interior Seaway mosasaur - length about 8-14 m (Size vs human uses 13 m), mass about 1.1 tonnes to several tonnes - not a dinosaur, distinct from Mosasaurus. Drag to rotate, scroll or pinch to zoom, toggle a 1.8 m person for scale, and click a body part for a fossil-sourced fact.
Open the Tylosaurus page and take the camera
Open the Tylosaurus 3D Viewer and wait for the facts panel to fill. When the status line says you can drag, orbit Tylosaurus with the pointer and zoom with the scroll wheel or a two-finger pinch. Fullscreen expands the wrapper so the controls stay visible beside the scene. After first paint a license-clean CC-BY-SA 4.0 glTF may swap in automatically from the CDN; if that load fails the page stays on the procedural marine silhouette with zero regression.
Use the four Tylosaurus controls under the canvas
Under the Tylosaurus canvas, four controls handle view and scale:
- Fullscreen - fills the display while keeping the buttons visible
- Stop rotation / Auto-rotate - freezes or resumes auto-spin
- Idle motion - adds subtle flipper sway; tap again for Stand still
- Size vs human - shows a 1.8 m person at the honest length ratio used by the viewer (13 m representative within the published about 8-14 m range; some specimens near 12-13.2 m)
Read the Tylosaurus facts panel and click a body part
The Tylosaurus facts panel lists length about 8-14 m for large adults (some specimens near 12-13.2 m; Size vs human uses 13 m), body depth about 2 m for a large adult, mass about 1.1 tonnes for mid-size Santonian adults to several tonnes for the largest forms, the Late Cretaceous window about 90-66 million years ago in the Western Interior Seaway, carnivore diet, naming from Marsh 1872 (Tylosaurus) with T. proriger roots in Cope 1869 material, and the elongated toothless snout tip that helps separate it from European Mosasaurus (often reconstructed longer near 11-17 m). A short click - not a drag - on head, flipper, or tail surfaces a short fossil fact. Soft-tissue color is an artistic reconstruction. When the CC-BY-SA 4.0 glTF by seth the yutyrannus via Printables loads, the status text notes a real model with that credit - a stylized reconstruction, not a laser scan. This model is not a fossil-accurate skeleton. Tylosaurus is a marine reptile (mosasaur), not a dinosaur.
What the Tylosaurus how-to guide is not
The Tylosaurus how-to guide is a controls walkthrough for the in-browser viewer only - it does not place the model in your room (no AR), does not invent one precise length or weight beyond the disclosed about 8-14 m / 1.1 tonnes-to-several-tonnes ranges, does not invent soft-tissue color accuracy, does not invent game score or win states, and does not claim the optional glTF is a scientifically exact reconstruction. For the size story see Tylosaurus size comparison. For trade-offs versus phone AR apps see Tylosaurus 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.