IUGS ratification to ICS Redefinition of base-Wuchiapingian GSSP

IUGS Executive Committee has voted unanimously to ratify the proposal for the redefinition of the GSSP proposal for the base of the Wuchiapingian Stage (and Lopingian Series) as approved by the International Commission on Stratigraphy and forwarded to the IUGS EC on 18 July 2023.

Please click here for the ratification letter.