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): |
| Phanerozoic | 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 | ||
| Proterotozoic | 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 | ||
| Archean | Neoarchean | 2500 | 2800 | |
| Mesoarchean | 2800 | 3200 | ||
| Paleoarchean [“Isuan”] | 3200 | 3600 | ||
| Eoarchean | 3600 | not defined | ||
| “Hadean” |
Note: The color scheme of this table follows the official recommendation of the IUGS and ICS.
| LITERATURE CITED Bowring, S. A., J. P. Grotzinger, C. E. Isachsen, A. H. Knoll, S. M. Pelechaty, and P. Kolosov, 1993. Calibrating rates of early Cambrian evolution. Science. 261(3): 1293-1298. Gradstein, F. M., F. P. Agterberg, J. G. Ogg, J. Hardenbol, P. van Veen, J. Thierry, and Z. Huang. 1995. A Triassic, Jurassic and Cretaceous time scale. In: W. A. Bergren, D. V. Kent, M.-P. Aubry, and J. Hardenbol, eds. Geochronology, Time Scales, and Global Stratigraphic Correlation. SEPM Special Publication No. 54. pp. 95-126. Remane, J., M. B. Cita, J. Dercourt, P. Bouysse, F. Repetto, and A. Faure-Muret, eds. 2002. International Stratigraphic Chart. International Union of Geological Sciences. International Commission on Stratigraphy, Paris. [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/] |
| By Jack R. Holt. Last revised: 01/16/2014 |
