Above, as an experiment, is a diagram of geological eras and epochs, based on this Geological Society of America chart. The background image is from here. The diagram was constructed using fairly standard R, together with the XKCD font.
Above, as an experiment, is a diagram of geological eras and epochs, based on this Geological Society of America chart. The background image is from here. The diagram was constructed using fairly standard R, together with the XKCD font.