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Cenozoic * Recent (Holocene) * Pleistocene * Pliocene * Miocene * Oligocene * Eocene * Paleocene Mesozoic Mesozoic * Cretaceous * Jurassic * Triassic Paleozoic * Permian * Carboniferous (Pennsylvanian Mississippian) * Devonian * Silurian * Ordovician * Cambrian Pre-Cambrian You can remember this using the following mnemonic (starting at the bottom)

Camels ordinarily sit down carefully perhaps their joints creek probably early oiling will prevent permanent rheumatism. For a more detailed view of this look in the related link below.

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14y ago
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12y ago

There are 4 Eras of the Earth. The Precambrian Era, the Paleozoic Era, the Mesozoic Era, and the Cenozoic Era.

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The Pre-cambrian Era, The Paleozoic Era, The Mesozoic Era, and The Cenozoic Era

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Q: What are the 12 main periods in the four main eras of earths past?
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