Type
Zone
Age range
11.63–10.46 Ma
Miocene
Tortonian
Serravallian
G. trilobus PRZ
G. nepenthes/P. mayeri CRZ
G. praesiphonifera PRZ
G. trilobus PRZ
G. nepenthes/P. mayeri CRZ
G. praesiphonifera PRZ
11.711.611.611.511.411.411.311.311.311.211.211.111.111.010.910.910.810.810.810.710.710.610.610.510.4