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 14 140 UPPER PLIOCENE 89.0 98.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 14 140 LOWER MIOCENE 201.0 210.0 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 14 140 MIDDLE EOCENE 311.0 374.0 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS 14 140 PALEOCENE UPPER CRETACEOUS 585.0 587.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 53.5 100 76.75 DSDP INITIAL REPORTS 14 140 MAESTRICHTIAN 645.0 651.0 NO AGE GIVEN NO AGE GIVEN 65 70 67.5 DSDP INITIAL REPORTS