Calcareous nannofossils were analyzed using simple smear slides and standard light microscope techniques (Bown and Young, 1998). Samples were analyzed semiquantitatively; abundance and preservation categories are given in Table T1. Biostratigraphy is described with reference to the lowermost Cretaceous NK zones of Bralower et al. (1989), Lower Cretaceous NC zones of Roth (1978, 1983) with subzones after Bralower (1987) and Bralower et al. (1993), and Upper Cretaceous zones of Burnett (1998). The biostratigraphic zones, chronostratigraphy, and timescale correlations are after Shipboard Scientific Party (2002a).