The distribution patterns of the selected
biostratigraphically useful calcareous nannofossils were analyzed in the Pliocene
Pleistocene sequences of Holes 969E and 963B drilled during Ocean Drilling Program Leg 160
(Eastern Mediterranean). Quantitative methods were used to verify the reliability of the
sequence of calcareous nannofossil events detected during ODP Leg 107, Site 653 in the
Western Mediterranean. In the Mediterranean record, just above the base of the Zanclean,
the Reticulofenestra pseudoumbilicus paracme interval can be used to improve
biostratigraphic resolution in the basal Pliocene record. At the base of the sequence of
Hole 969E only the uppermost part of the Reticulofenestra pseudoumbilicus paracme was
identified. It is concluded, therefore, that a short segment is not present at the local
base of the Pliocene.
1Robertson, A.H.F., Emeis, K.-C.,
Richter, C., and Camerlenghi, A. (Eds.), 1998. Proc. ODP, Sci. Results, 160: College
Station, TX (Ocean Drilling Program).
2Department of Geology and GeodesyCorso, Tuköry 131-90100, Palermo,