This is a geologic timescale, or to be more exact, the International Stratigraphic Chart (ISC, version of 2009). You can look up all formally defined stratigraphic units, the time (million years before now) they have begun, whether they've defined by a “Global Boundary Stratotype Section and Point” (GSSP), and their “official” RGB colour codes. For some units, there's a bit of additional geologic and paleontologic information.

Currently, the app interface is in English or German. The names and additional information are not translated to German (yet).

The app is still work in progress, any corrections, translations and suggestions for improvements are welcome.

This Common Lisp code (tested on SBCL, needs CL-JSON package) contains various lumped-together information for the International Stratigraphic Chart and produces the necessary HTML and JSON files for the app.

The generated files are placed in the intermediate directory data to avoid accidentally damaging the app's files in mojo/data.

Unless you change stratigraphic information (hierarchy, styles, other data), you don't have to run the Lisp code.

Mojo (JavaScript) code for the app itself. Default language is English, localisation for German is found in resources. Directory data contains the HTML stratigraphic chart (shown in table scene) and the JSON database of information on the stratigraphic units (shown in details scene), both generated by the Lisp code.