Geochronology

A collection of notes regarding geochronology, geological time scales, and Earth's history.

Pages in this section

• Archean
• Calymmian
• Cambrian
• Cambrian Series 2
• Carboniferous
• Cenozoic
• Cisuralian
• Cretaceous
• Cryogenian
• Devonian
• Ectasian
• Ediacaran
• Eoarchean
• Eocene
• Furongian
• Geochronology Overview
• Guadalupian
• Hadean
• Holocene
• Jurassic
• Llandovery
• Lopingian
• Lower Cretaceous
• Lower Devonian
• Lower Jurassic
• Lower Mississippian
• Lower Ordovician
• Lower Pennsylvanian
• Lower Triassic
• Ludlow
• Mesoarchean
• Mesoproterozoic
• Mesozoic
• Miaolingian
• Middle Devonian
• Middle Jurassic
• Middle Mississippian
• Middle Ordovician
• Middle Pennsylvanian
• Middle Triassic
• Miocene
• Neoarchean
• Neogene
• Neoproterozoic
• Oligocene
• Ordovician
• Orosirian
• Paleoarchean
• Paleocene
• Paleogene
• Paleoproterozoic
• Paleozoic
• Permian
• Phanerozoic
• Pleistocene
• Pliocene
• Pridoli
• Proterozoic
• Quaternary
• Rhyacin
• Siderian
• Silurian
• Statherian
• Stenian
• Terreneuvian
• Tonian
• Triassic
• Upper Cretaceous
• Upper Devonian
• Upper Jurassic
• Upper Mississippian
• Upper Ordovician
• Upper Pennsylvanian
• Upper Triassic
• Wenlock