Map geological time onto a real corridor or walkway. Set your available length, choose an Earth-history window, and get event positions, a printable activity and teaching prompts. Free to use, no signup, with English and Chinese versions and source links. AI-assisted; teaching ages and timings are planning guidance, not classroom-trial results.
I'm the maintainer of Extinct Atlas. The Deep-Time Walkway Planner gives geological time a physical scale: choose a space, calculate where events belong, and mark them on the floor. On a 10 m Earth-history walkway, the K-Pg boundary is about 14.35 cm from the finish.
You can switch to Phanerozoic or Mesozoic time windows, share a setup, and print the current placement sheet. Sources and the conversion formula are shown on the page. Decimal places help with placement, not dating precision.
This is an independent AI-assisted project. Suggested ages and timings are planning guidance; classroom validation and independent expert review are not claimed. Feedback on clarity, usability and handling of uncertainty is welcome.