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

Base of Pleistocene GSSP Base of Gelasian GSSP Base of Piacenzian GSSP Base of Zanclean GSSP Base of Messinian GSSP Base of Tortonian GSSP Base of Aquitanian GSSP Base of Rupelian GSSP Base of Ypresian GSSP Base of Danian GSSP