Type
Zone
Age range
22.96–21.12 Ma
Miocene
Aquitanian
Oligocene
Chattian
G. binaiensis PRZ
P. kugleri TRZ
P. pseudokugleri LOZ
23.022.922.822.722.622.522.422.322.222.122.021.921.821.721.621.521.421.321.221.1