Type
Zone
Age range
0.31–0 Ma
Holocene
Meghalayan
Northgrippian
Greenlandian
Pleistocene
Late Pleistocene
Chibanian
Neodenticula seminae
Proboscia curvirostris
Neodenticula seminae
Proboscia curvirostris
0.320.300.280.260.240.220.200.180.160.140.120.100.080.060.040.020.00