Figure F12. Alternative age interpretations for the Eocene-Oligocene transition in Hole 1170D. A. nannofossil solution. B. Palynological/diatom/foraminifer solution. For lithostratigraphy key, see Fig. F3 in the "Explanatory Notes" chapter. ¹⁸, (01-a), (01-b) = isotopic events of Zachos et al., 1996. E/O gssp = Eocene/Oligocene global stratotype section and point.