(Table 3) Distribution of middle Eoecen-lowest Miocene calcareous nannofossils in ODP Hole 120-748B

V = very abundand, A = abundant, C = common, F = few, R = rare, r = rare reworked specimens, F = few reworked specimens, - = absent. The high-latitude zonation of Wei and Wise (1990 doi:10.2973/odp.proc.sr.113.125.1990) is used with the erection of the LO of Reticulofenestra bisecta as the marker for the Oligocene/Miocene boundary.