Type
Zone
Age range
2.39–1.88 Ma
Pleistocene
Gelasian
G. ruber PRZ
G. fistulosus HOZ - Atlantic
G. miocenica HOZ - Atlantic
G. tosaensis HOSZ
G. fistulosus HOZ - Atlantic
G. miocenica HOZ - Atlantic
2.402.382.362.342.322.302.282.262.242.222.202.182.162.142.122.102.082.062.042.022.001.981.961.941.921.901.881.86