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 38 338 PLEISTOCENE 0.0 28.5 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 38 338 PLEISTOCENE PLIOCENE 28.5 57.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0.011 5 2.506 DSDP INITIAL REPORTS 38 338 UPPER MIOCENE MIDDLE MIOCENE 66.5 76.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 5 16 10.5 DSDP INITIAL REPORTS 38 338 MIDDLE MIOCENE 76.0 107.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 38 338 LOWER MIOCENE 107.0 161.5 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 38 338 LOWER MIOCENE UPPER OLIGOCENE 161.5 171.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 16 30 23 DSDP INITIAL REPORTS 38 338 LOWER MIOCENE 171.5 180.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 38 338 MIDDLE OLIGOCENE 180.5 249.7 NO AGE GIVEN NO AGE GIVEN 29 32 30.5 DSDP INITIAL REPORTS 38 338 UPPER EOCENE 249.7 285.0 NO AGE GIVEN NO AGE GIVEN 37.5 43 40.25 DSDP INITIAL REPORTS 38 338 LOWER EOCENE 304.0 408.5 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS