INTERNATIONAL STRATIGRAPHIC CHART

421.3 42.6. 422.9 +2.5. 426.2 +2.4. Rhyacian. Siderian. 2300. Gorstian. Proterozoic. Precambrian. Archean. 196.5 +1.0. 2500. Homerian. Silurian. Wenlock.
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INTERNATIONAL STRATIGRAPHIC CHART

Miocene

Serravallian Langhian Burdigalian Aquitanian

Paleogene

Oligocene

Chattian Rupelian Priabonian

Eocene

Bartonian Lutetian Ypresian Thanetian

Paleocene

Selandian Danian Maastrichtian Campanian

Cretaceous

Mesozoic

Upper

Santonian Coniacian Turonian Cenomanian Albian Aptian

Lower

Barremian Hauterivian Valanginian Berriasian

3.600 5.332 7.246 11.608 13.82 15.97 20.43 23.03 28.4 ±0.1 33.9 ±0.1 37.2 ±0.1 40.4 ±0.2 48.6 ±0.2 55.8 ±0.2

65.5 ±0.3 70.6 ±0.6 83.5 ±0.7 85.8 ±0.7 89.3 ±1.0 93.5 ±0.8 99.6 ±0.9 112.0 ±1.0 125.0 ±1.0 130.0 ±1.5 136.4 ±2.0 140.2 ±3.0

Aalenian Toarcian Lower

Pliensbachian Sinemurian Hettangian Rhaetian

Upper

Norian Carnian

Middle Lower

Lopingian

Ladinian Anisian Olenekian

Induan Changhsingian Wuchiapingian Capitanian

145.5 ±4.0

Quaternary*: Formal chronostratigraphic unit sensu joint ICS-INQUA taskforce (2005) and ICS. Tertiary*: Informal chronostratigraphic unit sensu Aubry et al. (2005, Episodes 28/2).

Bajocian

Guadalupian

Wordian Roadian Kungurian

Cisuralian

Artinskian Sakmarian Asselian

Upper

Gzhelian Kasimovian

Middle

Moscovian

Lower

Bashkirian

Upper Serpukhovian Middle Lower

Visean

164.7 ±4.0 167.7 ±3.5

Middle

189.6 ±1.5

203.6 ±1.5 216.5 ±2.0 228.0 ±2.0 237.0 ±2.0 245.0 ±1.5 249.7 ±0.7 251.0 ±0.4 253.8 ±0.7 260.4 ±0.7 265.8 ±0.7 268.0 ±0.7 270.6 ±0.7 275.6 ±0.7 284.4 ±0.7 294.6 ±0.8 299.0 ±0.8 303.9 ±0.9 306.5 ±1.0 311.7 ±1.1 318.1 ±1.3 326.4 ±1.6 345.3 ±2.1

Tournaisian 359.2 ±2.5

Eifelian Pragian

Pridoli

183.0 ±1.5

199.6 ±0.6

Givetian

Lochkovian

175.6 ±2.0

196.5 ±1.0

Frasnian

Emsian Lower

171.6 ±3.0

Ludlow

Wenlock

Ludfordian Gorstian Homerian Sheinwoodian Telychian

Llandovery

Aeronian Rhuddanian Hirnantian

Upper

Katian Sandbian

Middle

Darriwilian

Neoproterozoic

385.3 ±2.6

397.5 ±2.7 407.0 ±2.8 411.2 ±2.8 416.0 ±2.8 418.7 ±2.7 421.3 ±2.6 422.9 ±2.5 426.2 ±2.4 428.2 ±2.3 436.0 ±1.9 439.0 ±1.8 443.7 ±1.5

Cryogenian Tonian Stenian

Mesoproterozoic

Ectasian Calymmian Statherian

Paleoproterozoic

Orosirian Rhyacian Siderian

460.9 ±1.6 468.1 ±1.6

GSSP GSSA

542 ~630 850 1000 1200 1400 1600 1800 2050 2300 2500

Neoarchean 2800

Mesoarchean 3200

Paleoarchean 3600

445.6 ±1.5 455.8 ±1.6

Age Ma

System Period

Ediacaran

374.5 ±2.6

391.8 ±2.7

Erathem Era

Eonothem Eon

359.2 ±2.5

GSSP

Age Ma

Stage Age

Series Epoch

Eonothem Eon Erathem Era System Period

GSSP

Age Ma 161.2 ±4.0

Devonian

Middle

58.7 ±0.2 61.7 ±0.2

Stage Age

Series Epoch

Eonothem Eon Erathem Era System Period

GSSP

2.588

Bathonian

155.7 ±4.0

Upper

Famennian

Precambrian Archean Proterozoic

Tortonian

1.806

150.8 ±4.0

Eoarchean

Lower limit is not defined

Subdivisions of the global geologic record are formally defined by their lower boundary. Each unit 471.8 ±1.6 of the Phanerozoic (~542 Ma to Present) and the Floian Lower 478.6 ±1.7 base of Ediacaran are defined by a basal Global Tremadocian Standard Section and Point (GSSP ), whereas 488.3 ±1.7 Precambrian units are formally subdivided by Stage 10 absolute age (Global Standard Stratigraphic Age, ~ 492.0 * Stage 9 Furongian GSSA). Details of each GSSP are posted on the ~ 496.0 * ICS website (www.stratigraphy.org). Paibian International chronostratigraphic units, rank, 501.0 ±2.0 names and formal status are approved by the Stage 7 International Commission on Stratigraphy (ICS) ~ 503.0 * Series 3 Drumian and ratified by the International Union of Geological ~ 506.5 * Sciences (IUGS). Stage 5 Numerical ages of the unit boundaries in the ~ 510.0 * Phanerozoic are subject to revision. Some stages Stage 4 ~ 517.0 * within the Ordovician and Cambrian will be formally Series 2 Stage 3 named upon international agreement on their GSSP ~ 521.0 * limits. Most sub-Series boundaries (e.g., Middle Stage 2 and Upper Aptian) are not formally defined. ~ 534.6 * Series 1 Colors are according to the Commission for the Stage 1 542.0 ±1.0 Geological Map of the World (www.cgmw.org). This chart was drafted by Gabi Ogg. Intra Cambrian unit ages The listed numerical ages are from 'A Geologic with * are informal, and awaiting ratified defnitions. Time Scale 2004', by F.M. Gradstein, J.G. Ogg, Copyright © 2006 International Commission on Stratigraphy A.G. Smith, et al. (2004; Cambridge University Press).

Cambrian

Messinian

Callovian

145.5 ±4.0

Phanerozoic Paleo zoic Ordovician Silurian

Zanclean

0.781

Triassic

Piacenzian

Kimmeridgian Oxfordian

Pennsylvanian

Pliocene

0.126

Mississippian

Neogene

Gelasian

Upper

Meso zoic Jurassic

Lower

0.0118

Paleo zoic Carboniferous Permian

Middle

Tithonian

Phanerozoic

Pleistocene

Age Ma

Stage Age

Series Epoch

Sub-Era

System Period

Upper

Tertiary*

Phanerozoic Cenozoic

International Commission on Stratigraphy

Holocene

Quaternary *

Eonothem Eon Erathem Era

ICS

Stage 3