Portal:Paleozoic

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Paleozoic
Class
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon, spanning from roughly 541 to 252.17 million years ago. It is the longest of the Phanerozoic eras, and is subdivided into six geologic periods (from oldest to youngest): the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. The Paleozoic comes after the Neoproterozoic Era of the Proterozoic Eon, and is followed by the Mesozoic Era.— Excerpted from Paleozoic on Wikipedia, the free encyclopedia.
Earth as it appeared during the Cambrian period.
Earth as it appeared during the Cambrian period.

Cambrian[edit]

Ordovician[edit]

Silurian[edit]

Devonian[edit]

Carboniferous[edit]

Permian[edit]