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Geological Time Scale

Display the geological time scale of the Earth's history.
New in version 0.7.1
- French translation.
The App shows the geological time scale of the history of the earth. The time scale shows the units Eonothem, Erathem, Period, Epoch and Stage. It shows the begin of every period and if it is a GSSP. The time scale can be scrolled up and down if it does not fit on the screen. The view can be changed to fit the height of the display. Additionally, there is a true to scale option which sets the height of all periods according to its duration. You can select a period by touching it. Then, only the selected period and the subsequent periods are shown.

With the plus button it is possible to add a column with the more detailed unit at the right. The minus button removes the rightmost column. By sliding left or right, the view can be moved towards the more detailed or more coarse units.

There is also a search function which highlights the desired period.
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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 0.7.1 (14) suggested Added on Feb 23, 2025

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    No permissions

    Download APK 89 KiB PGP Signature | Build Log

    • New in version 0.7.0
    - Keep table headers visible when scrolling.
    - Keep period name visible when scrolling.
    - Fix broken help text.
    - Fix crash when last period is selected.
  • Version 0.7.0 (13) - Added on Jan 06, 2025

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    No permissions

    Download APK 85 KiB PGP Signature | Build Log

    • New in version 0.6.4
    - Update numerical ages and GSSPs.
  • Version 0.6.4 (12) - Added on Jan 11, 2024

    This version requires Android 4.0.3 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    No permissions

    Download APK 102 KiB PGP Signature | Build Log

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