Click on the "golden spikes" to access the available information on Global Boundary Stratotype Sections and Points.

Base of Wuchiapingian GSSP Base of Capitanian GSSP Base of Wordian GSSP Base of Roadian GSSP Base of Asselian GSSP Base of Bashkirian GSSP Base of Tournaisian GSSP Base of Famennian GSSP Base of Frasnian GSSP Base of Givetian GSSP Base of Eifelian GSSP Base of Emsian GSSP Base of Pragian GSSP Base of Lochkovian GSSP Base of Pridolian GSSP Base of Ludfordian GSSP Base of Gorstian GSSP Base of Homerian GSSP Base of Sheinwordian GSSP Base of Telychian GSSP Base of Aeronian GSSP Base of Rhuddanian GSSP Base of Base of Darriwillian GSSP Base of Base of Tremadocian GSSP Base of Paibian GSSP Base of Cambrian GSSP