The Gelasian question: options in the definition of Pleistocene for manuscripts submitted to our journals

摘要

Until further notice, the authors of manuscripts submitted to Micropaleontology and Stratigraphy will have the choice of two options in characterizing the age of later Cenozoic events and strata. The options are:1. 2.6 Ma option: Pleistocene defined in the Gelasian GSSP.This option conforms to the recent proposal by INQUA, subse-quently approved by IUGS (Gibbard, Head and Walker 2010), in which the recognition of a formal Quaternary Period/System in place of the latter part of the Neogene leads to redefining the base of the Pleistocene Epoch/Series in the San Nicola GSSP of the Gelasian Age/Stage, currently calibrated to 2.588 (2.6) Ma.