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 58 445 HOLOCENE UPPER PLEISTOCENE 0.0 8.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0 0.7 0.35 DSDP INITIAL REPORTS 58 445 UPPER PLEISTOCENE 8.5 27.5 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 58 445 LOWER PLEISTOCENE 27.5 46.5 NO AGE GIVEN NO AGE GIVEN 1.2 1.8 1.5 DSDP INITIAL REPORTS 58 445 LOWER PLEISTOCENE UPPER PLIOCENE 46.5 56.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 1.2 3.4 2.3 DSDP INITIAL REPORTS 58 445 UPPER PLIOCENE 56.0 113.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 58 445 LOWER PLIOCENE 113.0 141.5 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 58 445 LOWER PLIOCENE UPPER MIOCENE 141.5 151.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 3.4 10.5 6.95 DSDP INITIAL REPORTS 58 445 UPPER MIOCENE 151.0 265.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 58 445 MIDDLE MIOCENE 265.0 284.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 58 445 MIDDLE MIOCENE LOWER MIOCENE 284.0 331.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 10.5 22.5 16.5 DSDP INITIAL REPORTS 58 445 LOWER MIOCENE 331.5 379.0 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 58 445 LOWER MIOCENE UPPER OLIGOCENE 379.0 426.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 16 30 23 DSDP INITIAL REPORTS 58 445 UPPER OLIGOCENE 426.5 436.0 NO AGE GIVEN NO AGE GIVEN 22.5 30 26.25 DSDP INITIAL REPORTS 58 445 UPPER OLIGOCENE MIDDLE OLIGOCENE 436.0 445.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 22.5 32 27.25 DSDP INITIAL REPORTS 58 445 MIDDLE OLIGOCENE 445.5 540.5 NO AGE GIVEN NO AGE GIVEN 29 32 30.5 DSDP INITIAL REPORTS 58 445 MIDDLE OLIGOCENE LOWER OLIGOCENE 540.5 550.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 29 37.5 33.25 DSDP INITIAL REPORTS 58 445 MIDDLE OLIGOCENE UPPER EOCENE 550.0 559.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 29 43 36 DSDP INITIAL REPORTS 58 445 UPPER EOCENE 559.5 616.5 NO AGE GIVEN NO AGE GIVEN 37.5 43 40.25 DSDP INITIAL REPORTS 58 445 MIDDLE EOCENE 616.5 854.0 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS