IUGS ratification to ICS Artinskian GSSP

IUGS Executive Committee has voted overwhelmingly to ratify the GSSP proposal for the base of the Artinskian Stage of the Cisuralian Series and Permian System as approved by the International Commission on Stratigraphy and forward to the IUGS EC on 27 January 2022.

Please click here for the ratification letter.