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Published online July 1, 2020

Copyright © International Union of Geological Sciences.

Subseries/Subepochs approved as a formal rank in the International Stratigraphic Guide

Marie-Pierre Aubry1*, Martin J. Head2, Werner E. Piller3, and William A. Berggren1,4

1 Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, NJ 08873
2 Department of Earth Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario LS2 3A1, Canada
3 Institute of Earth Sciences, University of Graz, NAWI Graz Geocenter Heinrichstrasse 26, 8010 Graz, Austria
4 Department of Geology & Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Ma 02543.

Correspondence to:E-mail: aubry@eps.rutgers.edu

Received: December 3, 2019; Revised: May 17, 2020; Accepted: May 17, 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


The International Subcommission on Stratigraphic Classification, as the constituent body of the International Commission on Stratigraphy (ICS) responsible for the International Stratigraphic Guide, has voted to include the subseries/ subepoch as a formal rank in the next edition of the Guide. This acknowledges the recent ratification of formal subseries and their corresponding stages for the Holocene Series/Epoch but allows individual subcommissions within ICS the freedom to decide whether or not to adopt this rank for their particular stratigraphic/time interval.