Ratification of subseries/subepochs as formal rank/units in international chronostratigraphy

voted unanimously to ratify the proposal for formal adoption of the chronostratigraphical/geochronological unit divisions subseries/subepoch within the International Stratigraphic Guide as International on Stratigraphy incorporated in a six-tiered chronostratigraphic hierarchy of units that are formally defined by a designated GSSP (Global Stage Stratotype and Point) at the base of designated type stages. Henceforth, subseries/subepochs of the Cenozoic are to be denominated by capitalised positional adjectives --Lower/Early, Middle, and Upper/Late – added to the names of the relevant series/epochs.

[1]  M. Aubry,et al.  Untying a Gordian knot: the case of subseries , 2021 .

[2]  C. Brett,et al.  NORTH AMERICAN COMMISSION ON STRATIGRAPHIC NOMENCLATURE Report 14 - Revision of Articles 73, 81, 82 and Table 2 of the North American Stratigraphic Code to Formalize Subseries and Subepochs , 2020 .

[3]  W. Berggren,et al.  Subseries/Subepochs approved as a formal rank in the International Stratigraphic Guide , 2020, Episodes.

[4]  J. Zalasiewicz,et al.  Formal ratification of subseries for the Pleistocene Series of the Quaternary System , 2020 .

[5]  Harvey Weiss,et al.  Subdividing the Holocene Series/Epoch: formalization of stages/ages and subseries/subepochs, and designation of GSSPs and auxiliary stratotypes , 2019, Journal of Quaternary Science.

[6]  H. Weiss,et al.  Formal ratification of the subdivision of the Holocene Series/Epoch (Quaternary System/Period): two new Global Boundary Stratotype Sections and Points (GSSPs) and three new stages/subseries , 2018, Episodes.

[7]  C. Brett,et al.  North American Commission on Stratigraphic Nomenclature Note 69 – Application for addition of subseries/subepoch to the North American Stratigraphic Code , 2018 .

[8]  P. Bown,et al.  The status of subseries/subepochs for the Paleocene to Holocene: Recommendations to authors and editors , 2017 .

[9]  P. Pearson,et al.  Sub-series and sub-epochs are informal units and should continue to be omitted from the International Chronostratigraphic Chart , 2017 .

[10]  K. Miller,et al.  A case for formalizing subseries (subepochs) of the Cenozoic Era , 2017 .

[11]  M. Aubry Cenozoic chronostratigraphic terminology: In defense of formal subseries , 2016, Stratigraphy.

[12]  Amos Salvador,et al.  International Stratigraphic Guide: A Guide to Stratigraphic Classification, Terminology, and Procedure , 1996 .

[13]  F. V. Eysinga International stratigraphic guide — A guide to stratigraphic classification, terminology and procedure , 1977 .