Print this object View published version of content View references for this item

Geologic Time Scale

A simplified geologic time scale showing the precambrian, paleozoic, mesozoic, and cenozoic eras.

Simplified geologic time scale

 

Age (Million Years)

Period

Era

1.8 - 0

Quaternary

Cenozoic

65 - 1.8

Tertiary

144 - 65

Cretaceous

Mesozoic

206 - 144

Jurassic

248 - 206

Triassic

290 - 248

Permian

Paleozoic

323 - 290

Pennsylvanian

354 - 323

Mississippian

417 - 354

Devonian

443 - 417

Silurian

490 - 443

Ordovician

543 - 490

Cambrian

3880 (?) - 543

 

Precambrian

The Quaternary Period is subdivided into the Pleistocene and Holocene Epochs, with the latter beginning about 10,000 years ago.

Home » Mesozoic Period » Geologic Time Scale



 
Skip to content. Skip to navigation
Text Size: Large | Normal | Small