User:Cato censor/Books/Geological Eras of the Phanerozoic

since the emergence of pluricellular life to our days

 * Paleozoic
 * Cambrian
 * Ordovician
 * Silurian
 * Devonian
 * Carboniferous
 * Permian


 * Mesozoic
 * Triassic
 * Jurassic
 * Cretaceous


 * Cenozoic
 * Paleogene
 * Neogene
 * Quaternary