The formal division of the Quaternary is the responsibility of the IUGS International Commission on Stratigraphy's (ICS) Subcommission on Quaternary Stratigraphy (SQS), in partnership with the International Union for Quaternary Research's (INQUA) Commission on Stratigraphy and Chronology (SACCOM).
The table provides a correlation of chronostratigraphical subdivisions of late Cenozoic geological time, spanning the last 2.7 million years. The timescale of the correlation table is based on the internationally-recognised formal time subdivisions: the Phanerozoic Eon; the Cenozoic Era; the Quaternary System or Period; the Pleistocene and Holocene Series, and finally the Early/Lower, Middle, Late/Upper Pleistocene Subseries. At present the subseries divisions of the Pleistocene are not formalised. Series, and thereby systems, are formally-defined based on Global Stratotype Section and Points (GSSP) of which two have been ratified within the last 2.7 million years.
The chart should be referred to as : Cohen K.M. & Gibbard, P. 2011 Global chronostratigraphical correlation table for the last 2.7 million years. Subcommission on Quaternary Stratigraphy (International Commission on Stratigraphy), Cambridge, England.
Previous versions of the chart were published as Gibbard et al. 2004, 2005, Gibbard & Cohen, 2008 and Gibbard & Cohen, 2009.
Charts showing regional and larger-scale chronostratigraphical and climatostratigraphical correlations are available on the INQUA-SACCOM website.
Correlation of late Cenozoic chronostratigraphical divisions from the Geologic Timescale 2012 (Gradstein et al.). Drawn and reproduced by kind permission of Jim and Gabi Ogg. click on image to download a jpg version.
Temporal and latitudinal relations between orbital forcing and Earth's Late Pliocene-Early Pleistocene climate (3.0-1.5 Ma) as recorded by a high-resolution deep ocean δ18O ice volume record from Southwestern Pacific ODP site 1123, glacio-eustatic cyclothems of Wanganui Basin New Zealand, ice rafting as recorded by magnetic susceptibility at North Pacific ODP site 882, and a median grainsize profile of the Jingchuan Loess Section, North central China Loess Plateau. LO Zd denotes first appearance in North Island of New Zealand stratigraphic record of the subantarctic scallop Zygochlamys delicatula during glacial periods, traditionally marking the Plio-Pleistocene boundary in New Zealand. Pollen summary diagram from ODP 658, offshore West Africa shows progressive aridification of Northwest Africa between 2.8 and 2.4 Ma, as (B) sahel-savanna grassland and open forest elements are replaced by drier (C) saharan desert vegetation. Subordinate vegetation assemblages (A) and (D) represent a tropical coastal forest and "Mediterranean" (trade wind) elements, respectively. Note well-developed 40ka glacial-interglacial modulation of the sahel-savanna boundary following 2.6Ma. A step-like increase in African aridity about 2.8 Ma is linked to a significant event in hominid evolution in East Africa as the genera Paranthropus and Homo emerge from a single lineage (Australopithecus afarensis). Originally from Pillans and Naish (2004) but reproduced in J.G Ogg & B.Pillans 2008 Establishing Quaternary as a formal international Period/System. Episodes 31. 230-233.
click on image to download a pdf version.
The following sites produce up to date stratigraphical charts for all divisions of geological time
This chart, Tabla Cronoestratigráfica del Cuaternario de la Península Ibérica, is produced by AEQUA
For download is a high-resolution jpeg version (1.0 Mb). This is version 2, the earlier version, published in 2007 (1.3 Mb), is available here.
A 2009 Geologic Time Scale chart by the Geological Society of America published in GSA Today.
The Quaternary of Colombia (a low resolution version 3.2 mb) - a summary of research on the critically important sequences of Colombia by Henry Hooghiemstra [H.Hooghiemstra@uva.nl] (University of Amsterdam). A high-resolution version (21.8 mb) is available direct from Professor Hooghiemstra.
this page is maintained by P.L. Gibbard and K.M. Cohen