leg site hole age mnemonic auxiliary age mnemonic top of section depth(m) bottom of section depth(m) special condition age auxiliary age averaged age age top of section(million years) age bottom of section(million years) average age(million years)t data source 43 385 PLEISTOCENE 22.3 31.8 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 43 385 UPPER OLIGOCENE 60.4 108.0 NO AGE GIVEN NO AGE GIVEN 22.5 30 26.25 DSDP INITIAL REPORTS 43 385 MIDDLE EOCENE 136.5 146.1 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS 43 385 LOWER EOCENE 146.1 165.1 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 43 385 LOWER PALEOCENE 203.0 212.5 NO AGE GIVEN NO AGE GIVEN 60 65 62.5 DSDP INITIAL REPORTS 43 385 UPPER CRETACEOUS 212.5 222.0 NO AGE GIVEN NO AGE GIVEN 65 100 82.5 DSDP INITIAL REPORTS 43 385 MAESTRICHTIAN 231.6 241.0 NO AGE GIVEN NO AGE GIVEN 65 70 67.5 DSDP INITIAL REPORTS 43 385 UPPER CRETACEOUS 269.6 278.9 NO AGE GIVEN NO AGE GIVEN 65 100 82.5 DSDP INITIAL REPORTS