In Defense of Science by Frank R. Spellman

Author:Frank R. Spellman
Language: eng
Format: epub
Publisher: Bernan Press

Cenozoic

Quaternary

2.5–present

Tertiary

65–2.5

Mesozoic

Cretaceous

135–65

Jurassic

190–135

Triassic

225–190

Paleozoic

Permian

280–225

Pennsylvanian

320–280

Mississippian

345–320

Devonian

400–345

Silurian

440–400

Ordovician

500–440

Cambrian

570–500

Precambrian

4,600–570

Table 6.2 Geological Epochs Over the Past Sixty-Five Million Years

Epoch

Million Years Ago

Holocene

01–0

Pleistocene

1.6–.01

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