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geological column


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Also known as the stratigraphical column, this is the separation of geological time into eras and periods, as below:

era

period

epoch

end date, million years

Quaternary

Holocene (recent)

Pleistocene (glacial)

Tertiary

Pliocene

2

(Cenozoic)

Miocene

Oligocene

Eocene

Secondary

Cretaceous

65

(Mesozoic)

Jurassic

135

Triassic

190

Primary

Permian

225

(Palaeozoic)

Carboniferous

280

Devonian

345

Silurian

395

Ordovician

440

Cambrian

500

Precambrian

570

Subjects: Earth Sciences and Geography — Environmental Science.


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