Figure F6. Holocene through Late Cretaceous time scale and biostratigraphic datums used during Leg 183 for the Kerguelen Plateau Sites 1135-1140 (modified from Berggren et al., 1995; Gradstein et al., 1994; Erba et al., 1995). High-latitude zonations used on Leg 183 vs. low-latitude zonations are indicated under "Leg 183" and "Low Lat.," respectively, for foraminifers and nannofossils. High-latitude biostratigraphic datum and age correlations are indicated in bold type under "Biostratigraphic Datums"; foraminiferal datums are underlined. Planktonic foraminifer zonations adopted from Berggren (1992: Neogene Kerguelen); Stott and Kennett (1990: Antarctic Paleogene; modified by Huber, 1991, and Berggren, 1992); Cita et al. (1997: Southern Ocean Late Cretaceous [after Huber, 1992]). Nannofossil zonations adopted from Wise (1983: Antarctic Oligocene to mid-middle Eocene; modified by Wei and Wise, 1990; and Wei and Thierstein, 1991, and calibrated against magnetostratigraphy by Wei, 1992); Wei and Pospichal (1991: Antarctic Paleocene ["NA" zones]); Watkins et al. (1996: Austral Upper Cretaceous [see also Cita el al., 1997]); and Bralower (1992: Albian [Lower Cretaceous]; also see Bralower et al., 1993, 1995). Note that some of the high-latitude datums are only correlated to magnetic chrons in the literature. Dashed zonal boundaries indicate uncertain datum levels. T = top/last occurrence, B = base/first occurrence.