12. CENOZOIC DIATOM BIOSTRATIGRAPHY OF THE MIDDLE AMERICA TRENCH AND SLOPE, DEEP SEA DRILLING PROJECT LEG 841

Eocene to upper Pleistocene diatoms were recovered during DSDP Leg 84. The stratigraphic distributions of these diatoms at Sites 565 through 570 are presented. Published Zones of Burckle (1972, 1977, 1978), Burckle and Trainer (1979), and Barron (1980, 1981, 1983) for low-latitude Pacific biostratigraphy are recognized in these sediments, al-though certain zones are absent, owing to depositional hiatuses