tiempo geologico

1. INTERNATIONAL STRATIGRAPHIC CHART
ICS International Commission on Stratigraphy
Eonothem
Eonothem
Eonothem
Eonothem
Erathem
Erathem
Erathem
Erathem
System
System
System
System
Period
Period
Period
Period
Series
Epoch
Series
Epoch
Series
Epoch
GSSP
GSSP
GSSP
GSSP
GSSA
Stage
Stage
Stage
Eon
Age
Age
Eon
Age
Age
Eon
Age
Age
Eon
Age
Era
Era
Era
Era
Ma
Ma
Ma
Ma
145.5 ±4.0 359.2 ±2.5 542
Holocene Tithonian Famennian Ediacaran
0.0117 150.8 ±4.0 Upper 374.5 ±2.6 Neo- ~635
Quaternary
Upper Upper Kimmeridgian Frasnian Cryogenian
0.126 ~ 155.6 385.3 ±2.6 proterozoic 850
Devonian
“Ionian” Oxfordian Givetian Tonian
Pleistocene 0.781 161.2 ±4.0 Middle 391.8 ±2.7 1000
Proterozoic
Calabrian Callovian Eifelian Stenian
1.806 164.7 ±4.0 397.5 ±2.7 1200
Meso-
Jurassic
Gelasian Bathonian Emsian Ectasian
2.588 Middle 167.7 ±3.5 407.0 ±2.8 proterozoic 1400
Piacenzian Bajocian Lower Pragian Calymmian
Pliocene 3.600 171.6 ±3.0 411.2 ±2.8 1600
Zanclean Aalenian Lochkovian Statherian
Meso zoic
5.332 175.6 ±2.0 1800
Precambrian
416.0 ±2.8
Messinian Toarcian Pridoli Paleo- Orosirian
Neogene
7.246 183.0 ±1.5 418.7 ±2.7 2050
Tortonian Pliensbachian Ludfordian proterozoic Rhyacian
Cenozoic
11.608 Lower 189.6 ±1.5 Ludlow 421.3 ±2.6 2300
Serravallian Sinemurian Gorstian Siderian
Miocene 13.82 196.5 ±1.0 2500
Silurian
422.9 ±2.5
Langhian Hettangian Homerian
15.97 199.6 ±0.6 Wenlock 426.2 ±2.4 Neoarchean
Burdigalian Rhaetian Sheinwoodian
20.43 203.6 ±1.5 428.2 ±2.3 2800
Aquitanian Upper Norian Telychian
Archean
23.03 216.5 ±2.0 436.0 ±1.9 Mesoarchean
Phanerozoic
Phanerozoic
Phanerozoic
Carnian
Triassic
Chattian Llandovery Aeronian
Paleo zoic
Oligocene 28.4 ±0.1 ~ 228.7 439.0 ±1.8 3200
Rupelian Ladinian Rhuddanian
33.9 ±0.1 Middle 237.0 ±2.0 443.7 ±1.5 Paleoarchean
Priabonian Anisian Hirnantian
~ 245.9
Paleogene
37.2 ±0.1 445.6 ±1.5 3600
Bartonian Olenekian Upper Katian
Eocene Lower ~ 249.5 Eoarchean
Ordovician
40.4 ±0.2 455.8 ±1.6
Lutetian Induan Sandbian
48.6 ±0.2 251.0 ±0.4 460.9 ±1.6 4000
Ypresian Changhsingian Darriwilian
55.8 ±0.2 Lopingian 253.8 ±0.7 Middle 468.1 ±1.6 Hadean (informal)
Thanetian Wuchiapingian Dapingian
58.7 ±0.2 260.4 ±0.7 471.8 ±1.6 ~4600
Paleocene Selandian Capitanian Floian
~ 61.1 265.8 ±0.7 Lower 478.6 ±1.7Subdivisions of the global geologic record are
Permian
Danian Guadalupian Wordian Tremadocian formally defined by their lower boundary. Each unit
65.5 ±0.3 268.0 ±0.7 488.3 ±1.7 of the Phanerozoic (~542 Ma to Present) and the
Maastrichtian Roadian Stage 10
70.6 ±0.6 270.6 ±0.7 ~ 492 * base of Ediacaran are defined by a basal Global
Campanian Kungurian Furongian Stage 9 Boundary Stratotype Section and Point (GSSP ),
Paleo zoic
83.5 ±0.7 275.6 ±0.7 ~ 496 * whereas Precambrian units are formally subdivided
Santonian Artinskian Paibian by absolute age (Global Standard Stratigraphic Age,
Upper 85.8 ±0.7 Cisuralian 284.4 ±0.7 ~ 499
Coniacian Sakmarian Guzhangian GSSA). Details of each GSSP are posted on the
Cambrian
ICS website (www.stratigraphy.org).
Mesozoic
~ 88.6 294.6 ±0.8 ~ 503
Cretaceous
Turonian Asselian Series 3 Drumian Numerical ages of the unit boundaries in the
93.6 ±0.8 299.0 ±0.8 ~ 506.5 Phanerozoic are subject to revision. Some stages
Cenomanian Gzhelian Stage 5 within the Cambrian will be formally named upon
99.6 ±0.9 Upper 303.4 ±0.9 ~ 510 *
sylvanian
international agreement on their GSSP limits. Most
Carboniferous
Albian Kasimovian Stage 4
Penn-
112.0 ±1.0 307.2 ±1.0 Series 2 ~ 515 * sub-Series boundaries (e.g., Middle and Upper
Aptian Middle Moscovian Stage 3 Aptian) are not formally defined.
125.0 ±1.0 311.7 ±1.1 ~ 521 * Colors are according to the Commission for the
Barremian Lower Bashkirian Stage 2 Geological Map of the World (www.cgmw.org).
Lower 130.0 ±1.5 318.1 ±1.3 Terreneuvian ~ 528 *
Hauterivian Upper Serpukhovian Fortunian 542.0 ±1.0 The listed numerical ages are from 'A Geologic
sippian
Time Scale 2004', by F.M. Gradstein, J.G. Ogg,
Missis-
~ 133.9 328.3 ±1.6
Valanginian Middle Visean This chart was drafted by Gabi Ogg. Intra Cambrian unit ages A.G. Smith, et al. (2004; Cambridge University Press)
140.2 ±3.0 345.3 ±2.1 with * are informal, and awaiting ratified definitions. and “The Concise Geologic Time Scale” by J.G. Ogg,
Berriasian 145.5 ±4.0 Lower Tournaisian 359.2 ±2.5
Copyright © 2009 International Commission on Stratigraphy G. Ogg and F.M. Gradstein (2008).
August 2009