Geologic Timescale

  • Cambrian Period- 570-500 MYA

    Cambrian Period- 570-500 MYA

    Earliest marine life recorded. Abundant amount of Trilobites.
  • Ordovician- 500-435 MYA

Plan projects on a visual timeline

Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.