Table 1. Cenozoic calcareous nannofossil datums used for Leg 149.

Table 1. Cenozoic calcareous nannofossil datums used for Leg 149.

Notes: T. = top; B. = bottom; BA. = bottom acme; TA. = top acme. Ages are from Berggren, Kent, and van Couvering (1985); Berggren et. al. (1985); Berggren, Kent, and Flynn (1985); Gartner (1990), and de Kaenel (unpubl. data) and have been recalibrated with the paleomagnetic time scale of Harland et al. (1990).