GSSP's
Map of GSSP's
| Stage | Section | Location |
| base Pleistocene | Vrica, near Crotone, Italy | 39º05' N, 17º07' E |
| base Gelasian | Mt S. Nicola, near Gela, Sicily, Italy | 37º04' N, 14º15' E |
| base Piacenzian | Punte Piccola, Sicily, Italy | 37º17'20'' N, 13º29'36'' E |
| base Zanclean | Eraclea Minoa, Sicily, Italy | 37º23'30'' N, 13º16'50'' E |
| base Messinian | Oued Akrech, Morrocco | 33º56'13'' N, 6º48'45'' E |
| base Neogene | Lemme-Carrosio, northern Italy | 44º39'32'' N, 8º50'11'' E |
| base Serravallian | Ras il Pellegrin | 35º54'56'' N, 14º20'03'' E |