https://github.com/davepinch/pinchy.cc/blob/master/content/streams/i-aimed-to-give-it-special-meaning/the-idea-is-to-have-a-ball-bounce-around-the-screen.md
The beginning of the Paleozoic Era witnessed the breakup of the supercontinent of Pannotia and ended while the supercontinent Pangaea was assembling.