It is an subordinate body of the International Union of Geological Sciences—of which it is the largest scientific body within the organisation—and of which, it is essentially a permanent working subcommittee that meets far more regularly than the quadrennial meetings scheduled by the IUGS, when it meets as a congress or membership of the whole.
The International Commission on Stratigraphy has spawned numerous subcommittee level organizations organized and mobilized on a local country-wide or regional basis that are the true working committees of the IUGS, and these do the field work, basis comparisons in conference or co-ordination research committee meetings of local or wide-scale scope.
One such controversy arose this past year when the ICS deliberated and decided the Pliocene of the current but unofficially named Quaternary should be shifted into the Neogene and period. The term Quaternary has yet to be officially adopted by the IUGS, but has widespread support as acceptable nomenclature for the current geologic period beginning at the GSSP accepted at 5,332,000 years ago at the transition between the Messinian age to the Zanclean (3.6 mya) . The ICS voted, perhaps because the time units span human paleoarchelogical strata, to begin the Quaternary at the end GSSP of the Piacenzian age (2.588 mya) or possibly the end of the Gelasian (1.806 mya), any of which are in a different .
UK: the International Commission on Stratigraphy has ended decades of controversy by pushing back the start date for the Earth's Quaternary period by 800,000 years to 2.6 million years ago.(Brief article)
Dec 01, 2009; UK The International Commission on Stratigraphy has ended decades of controversy by pushing back the start date for the Earth's...
A Sedimentological and Cyclostratigraphic Evaluation of the Completeness of the Mississippian-Pennsylvanian (Mid-Carboniferous) Global Stratotype Section and Point, Arrow Canyon, Nevada, USA
Jul 01, 2008; Abstract: The Mississippian-Pennsylvanian Global Stratotype Section and Point (GSSP) are hosted within a shallow-water,...