Figure F6. Correlation of the Neogene chronostratigraphy, biostratigraphy, and magnetostratigraphy used during Leg 186. Correlation of the magnetic polarity record and the epoch boundaries follows that of Cande and Kent (1995); diatom biochronology follows Motoyama and Maruyama (1998) and Yanagisawa and Akiba (1998); and nannofossil biochronology follows Berggren et al. (1995). FO = first occurrence; FCO = first common occurrence; LO = last occurrence; and LCO = last common occurrence.