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Prehistoric Scratchpad

Early age of the animals.

Paleozoic Era Web Pages[]


  • Phanerozoic Eon
    • Paleozoic Era
      • Cambrian Period - Period that experienced the greatest explosion in animal life. Took place after Snowball Earth and a mass extinction of the pre-cambrian complex life. Many types of modern life are represented in this period, including Arthropods (trilobites, already diverse), molluscs (sea shells), echinoderms (sea urchins, starfish), and the oldest vertebrates (Haikouichthys). The development of the complex eye is thought to have originated at this time, accelerating evolution.
      • Ordovician Period - Second period of the Paleozoic.
      • Silurian Period - Third period of the Paleozoic.
      • Devonian Period - Devonian Period
      • Carboniferous Period - Carboniferous Period
      • Permian Period - Last era of the Proterozoic.

Paleozoic Era In the News[]

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