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 14 135 UPPER PLEISTOCENE 0.0 4.0 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 14 135 LOWER PLIOCENE 80.0 86.8 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 14 135 UPPER MIOCENE 86.8 182.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 14 135 MIDDLE MIOCENE 259.0 268.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 14 135 LOWER EOCENE 335.0 341.0 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 14 135 PALEOCENE CRETACEOUS 341.0 350.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 53.5 135 94.25 DSDP INITIAL REPORTS 14 135 MAESTRICHTIAN CAMPANIAN 431.0 435.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 65 78 71.5 DSDP INITIAL REPORTS 14 135 CRETACEOUS 564.0 569.0 NO AGE GIVEN NO AGE GIVEN 65 135 100 DSDP INITIAL REPORTS 14 135 APTIAN 685.0 687.0 NO AGE GIVEN NO AGE GIVEN 108 110 109 DSDP INITIAL REPORTS