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 39 355 PLEISTOCENE PLIOCENE 53.0 62.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0.011 5 2.506 DSDP INITIAL REPORTS 39 355 UPPER MIOCENE 110.0 112.7 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 39 355 UPPER MIOCENE LOWER MIOCENE 112.7 119.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 5 22.5 13.75 DSDP INITIAL REPORTS 39 355 LOWER MIOCENE 167.0 176.5 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 39 355 MIDDLE EOCENE 214.5 252.5 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS 39 355 MIDDLE EOCENE LOWER EOCENE 281.0 290.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 43 53.5 48.25 DSDP INITIAL REPORTS 39 355 LOWER EOCENE 300.0 395.0 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 39 355 LOWER MAESTRICHTIAN UPPER CAMPANIAN 404.5 423.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 67.5 74 70.75 DSDP INITIAL REPORTS 39 355 UPPER CAMPANIAN 423.5 433.0 NO AGE GIVEN NO AGE GIVEN 70 74 72 DSDP INITIAL REPORTS 39 355 CAMPANIAN 433.0 442.5 NO AGE GIVEN NO AGE GIVEN 70 78 74 DSDP INITIAL REPORTS 39 355 LOWER CAMPANIAN 442.5 461.5 NO AGE GIVEN NO AGE GIVEN 74 78 76 DSDP INITIAL REPORTS