Berggren, W. A., et al. (1995). A revised Cenozoic geochronology and chronostratigraphy. In, Berggren, W. A. , Kent, D. V. , Aubry, M. -P. , and Hardenbol, J. (ed.) Geochronology, Time Scales and Global Stratigraphic Correlations: A Unified Temporal Framework for a Historical Geology. SEPM Special Publication . 54: 129-212. gs

Chaisson, W. P. & Pearson, P. N. (1997). Planktonic foraminifer biostratigraphy at Site 925: middle Miocene Pleistocene. In, Shackleton, N. J. , Curry, W. B. , Richter, C. , and Bralower, T. J. (ed.) . Proceedings of the Ocean Drilling Program, Scientific Results . 154: 3-31. gs

Hilgen, F. J. (1991b). Extension of the astronomically calibrated (polarity) time scale to the Miocene/Pliocene boundary. Earth and Planetary Science Letters. 107: 349-368. gs

Lourens, L. J., et al. (1996a). Evaluation of the Plio- Pleistocene astronomical timescale. Paleoceanography. 11(4): 391-413. gs

Mix, A. C., Le, J. & Shackleton, N. J. (1995). Benthic foraminiferal stable isotope stratigraphy of site 846: 0 1.8 Ma. In, Pisias, N. G. , Mayer, L. A. , Janecek, T. R. , Palmer-Julson, A. , and van Andel, T. H. (ed.) . Proceedings of the Ocean Drilling Program, Scientific Results . 138: 839-854. gs

Shackleton, N. J., et al. (1995a). Biostratigraphic summary for Leg 138. In, Pisias, N. G. , Mayer, L. A. , Janecek, T. R. , Palmer-Julson, A. , and van Andel, T. H. (ed.) . Proceedings of the Ocean Drilling Program, Scientific Results . 138: 517-536. gs

Shackleton, N. J., et al. (1995b). A new late Neogene time scale: application to Leg 138 sites. In, Pisias, N. G. , Mayer, L. A. , Janecek, T. R. , Palmer-Julson, A. , and van Andel, T. H. (ed.) . Proceedings of the Ocean Drilling Program, Scientific Results . 138: 73-101. gs

Tiedemann, R. & Franz, S. O. (1997). Deep-water circulation, chemistry, and terrigenous sediment supply in the equatorial Atlantic during the Pliocene, 3.3-2.6 Ma and 5-4.5 Ma. In, Shackleton, N. J. , Curry, W. B. , Richter, C. , and Bralower, T. J. (ed.) . Proceedings of the Ocean Drilling Program, Scientific Results . 154: 299-318. gs

Zachariasse, W. J., et al. (1989). Late Gauss to Early Matuyama invasions of Neogloboquadrina atlantica in the Mediterranean and associated record of climatic change. Paleoceanography. 5(2): 239-252. gs

Bignot, G. & Janin, M. -C. (1984). Découverte de Globuligerina oxfordiana (Foraminifères planctonique) dans le Bajocien stratotypique de la Falaise des Hatcheetts (Sainte-Honorine-de-Pertes, Calvados, France). Comptes rendus de l'Académie des sciences, Paris. 298: 751-756. gs

Blow, W. H. (1969). Late middle Eocene to Recent planktonic foraminiferal biostratigraphy. In, Brönnimann, P. , and Renz, H. H. (ed.) Proceedings of the First International Conference on Planktonic Microfossils (Geneva, 1967). E.J. Brill, Leiden 199-422. gs

Blow, W. H. (1979). The Cainozoic Globigerinida; A Study of the Morphology, Taxonomy, Evolutionary Relationships and the Stratigraphical Distribution of some Globigerinida (Mainly Globigerinacea), Vols. 1 3. Leiden:. E.J. Brill, Leiden. 1-1413. gs

Gradstein, F. M., et al. (2017). The planktonic foraminifera of the Jurassic. Part II: Stratigraphy, palaeoecology and palaeobiogeography. Swiss Journal of Palaeontology. 136: 259-271. gs

Hardenbol, J., et al. (1998). Mesozoic and Cenozoic Sequence Chronostratigraphic Framework of European Basins. In, de Graciansky, P. -C. , Hardenbol, J. , Jacquin, T. , and Vail, P. R. (ed.) Mesozoic- Cenozoic Sequence Stratigraphy of European Basins. SEPM Special Publication . 60: 3-13 & appendix 763-783. gs

Stam, B. (1986). Quantitative analysis of Middle and Late Jurassic Foraminifera from Portugal and its implications for the Grand Banks of Newfoundland. Utrecht Micropaleontological Bulletin. 34: 1-167. gs

Wade, B. S., et al. (2011). Review and revision of Cenozoic planktonic foraminiferal biostratigraphy and calibration to the geomagnetic polarity and astronomical time scale. Earth-Science Reviews. 104: 111-142. gs