Geologic Timescale

By zedenstrom

  • 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
    fnmrklea;r njhvoiea;vf djk;vn kfld.a hjviofd;eamfvdezsv