Geologic Timescale

  • Cambrian Period- 570-500 MYA

    Cambrian Period- 570-500 MYA

    Triolobites were dominent. All lilfe was marine and many large multicellular organisms existed. Earth was mostly oceans.
  • Ordivician Period-500-435

    Ordivician Period-500-435

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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.