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 77 536 PLEISTOCENE 0.0 4.0 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 77 536 UPPER PLEISTOCENE 4.0 6.4 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 77 536 LOWER PLIOCENE 6.4 23.0 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 77 536 MIDDLE MIOCENE 23.0 51.5 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 77 536 LOWER MIOCENE 51.5 61.2 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 77 536 UPPER OLIGOCENE 61.2 70.5 NO AGE GIVEN NO AGE GIVEN 22.5 30 26.25 DSDP INITIAL REPORTS 77 536 MIDDLE EOCENE 70.5 70.6 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS 77 536 UPPER PALEOCENE 70.6 74.2 NO AGE GIVEN NO AGE GIVEN 53.5 60 56.75 DSDP INITIAL REPORTS 77 536 DANIAN 74.2 77.2 NO AGE GIVEN NO AGE GIVEN 60 65 62.5 DSDP INITIAL REPORTS 77 536 UPPER MAESTRICHTIAN 77.2 80.0 NO AGE GIVEN NO AGE GIVEN 65 67.5 66.25 DSDP INITIAL REPORTS 77 536 ALBIAN 89.5 99.0 NO AGE GIVEN NO AGE GIVEN 100 108 104 DSDP INITIAL REPORTS 77 536 LOWER CRETACEOUS 99.0 137.0 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 100 135 117.5 DSDP INITIAL REPORTS 77 536 UPPER APTIAN 137.0 146.5 NO AGE GIVEN NO AGE GIVEN 108 112 110 DSDP INITIAL REPORTS 77 536 LOWER CRETACEOUS 146.5 156.0 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 100 135 117.5 DSDP INITIAL REPORTS 77 536 UPPER APTIAN 156.0 175.0 NO AGE GIVEN NO AGE GIVEN 108 112 110 DSDP INITIAL REPORTS 77 536 LOWER CRETACEOUS 175.0 184.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 100 135 117.5 DSDP INITIAL REPORTS 77 536 UPPER APTIAN 184.5 194.0 NO AGE GIVEN NO AGE GIVEN 108 112 110 DSDP INITIAL REPORTS