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 67 495 HOLOCENE 9.5 19.0 NO AGE GIVEN NO AGE GIVEN 0 0.011 .0055 DSDP INITIAL REPORTS 67 495 UPPER PLEISTOCENE 19.0 28.5 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 67 495 LOWER PLEISTOCENE 28.5 57.0 NO AGE GIVEN NO AGE GIVEN 1.2 1.8 1.5 DSDP INITIAL REPORTS 67 495 UPPER PLIOCENE 57.0 95.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 67 495 PLIOCENE 95.0 104.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 1.8 5 3.4 DSDP INITIAL REPORTS 67 495 LOWER PLIOCENE 104.5 114.0 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 67 495 LOWER PLIOCENE UPPER MIOCENE 114.0 142.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 3.4 10.5 6.95 DSDP INITIAL REPORTS 67 495 UPPER MIOCENE 142.5 161.5 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 67 495 MIDDLE MIOCENE 161.5 209.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 67 495 MIDDLE MIOCENE LOWER MIOCENE 209.0 237.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 10.5 22.5 16.5 DSDP INITIAL REPORTS 67 495 LOWER MIOCENE 237.5 428.5 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS