After International Union of Geological Sciences

GEOLOGICAL TIME SCALE

After International Union of Geological Sciences: International Commission on Stratigraphy, 2002, 2003 and 2004. From Mikko's Phylogeny Page http://www.fmnh.helsinki.fi/users/haaramo/Timetables/Timetable_eng.htm

Eon	Era	Period	ended (MYA):	began (MYA):
P h a n e r o z o i c	Cenozoic	Holocene	0	0.0115
		Pleistocene	0.0115	1.806
		Pliocene	1.806	5.332
		Miocene	5.332	23.03
		Oligocene	23.03	33.9
		Eocene	33.9	55.8
		Paleocene	55.8	65.5
	Mesozoic	Cretaceous	65.5 ± 0.3	145.5 ± 4.0
		Jurassic	145.5 ± 4.0	199.6 ± 0.6
		Triassic	199.6 ± 0.6	251.0 ± 0.4
	Paleozoic	Permian	251.0 ± 0.4	299.0 ± 0.8
		Carboniferous	299.0 ± 0.8	359.2 ± 2.5
		Devonian	359.2 ± 2.5	416.0 ± 2.8
		Silurian	416.0 ± 2.8	443.7 ± 1.5
		Ordovician	443.7 ± 1.5	488.3 ± 1.7
		Cambrian	488.3 ± 1.7	542.0 ± 1.0
P r o t e r o t z o i c	Neoproterozoic	Ediacaran	542.0 ± 1.0	650
		Cryogenian	650	850
		Tonian	850	1000
	Mesoproterozoic [“Riphean”]	Stenian	1000	1200
		Ectasian	1200	1400
		Calymmian	1400	1600
	Paleoproterozoic	Statherian	1600	1800
		Orosirian	1800	2050
		Rhyacian	2050	2300
		Siderian	2300	2500
A r c h e a n	Neoarchean		2500	2800
	Mesoarchean		2800	3200
	Paleoarchean [“Isuan”]		3200	3600
	Eoarchean		3600	not defined
“ H a d e a n ”

Note:

The colorscheme of this table follows the official recommendation of the IUGS and ICS

Reference(s):

Bowring, S. A., Grotzinger, J. P., Isachsen, C. E., Knoll, A. H., Pelechaty, S. M. & Kolosov, P., 1993: Calibrating rates of Early Cambrian evolution.
–Science: Vol. 261, 3 September, pp. 1293-1298
Gradstein, F. M., F. P. Agterberg, J. G. Ogg, J. Hardenbol, P. van Veen, J. Thierry & Z. Huang. 1995: A Triassic, Jurassic and Cretaceous time scale, pp. 95-126.
in W. A. Bergren, D. V. Kent, M.-P. Aubry & J. Hardenbol (eds.), 1995: Geochronology, Time Scales, and Global Stratigraphic Correlation.
–SEPM Special Publication No. 54.
Remane, J., Cita, M. B., Dercourt, J., Bouysse, P., Repetto, F. & Faure-Muret, A., (eds.) 2002: International Stratigraphic Chart.
–International Union of Geological Sciences: International Commission on Stratigraphy, Paris, 2002
[http://www.stratigraphy.org/]
Remane, J., Cita, M. B., Dercourt, J., Bouysse, P., Repetto, F. & Faure-Muret, A., (eds.) 2003: International Stratigraphic Chart.
–International Union of Geological Sciences: International Commission on Stratigraphy, Paris, 2003
[http://www.stratigraphy.org/]
International Commission on Stratigraphy: 2004: International Stratigraphic Chart.
–International Union of Geological Sciences: International Commission on Stratigraphy, Paris, 2004
[http://www.stratigraphy.org/]