Ordovicsea

Ordovician Period

By 14crowleyj
  • Period: to

    Ordovician time period

  • Glaciation of Gondwana

    Glaciation of Gondwana

  • Nautiloids

    Nautiloids

  • Brachiopods

    Brachiopods

  • Hirnantian

    Hirnantian

  • Soil Formation

    Soil Formation

  • Cryptospores

    Cryptospores

  • Katian

    Katian
    Spore threads

  • Start of Andean-Saharan ice age

    Start of Andean-Saharan ice age

  • Pteraspidomorphi

    Pteraspidomorphi
    early to late

  • Crinoids

    Crinoids

  • Brachiopods

    Brachiopods

  • Echinoderms

    Echinoderms

  • Sandbian

    Sandbian

  • Gondwana moving over South pole

    Gondwana moving over South pole

  • second largest mass extinction of all time

    second largest mass extinction of all time
    Wiped out almost half of all marine life