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 43 384 MIDDLE EOCENE 50.8 87.7 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS 43 384 LOWER EOCENE 87.7 98.6 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 43 384 UPPER PALEOCENE 98.6 99.6 NO AGE GIVEN NO AGE GIVEN 53.5 60 56.75 DSDP INITIAL REPORTS 43 384 LOWER PALEOCENE 99.6 168.0 NO AGE GIVEN NO AGE GIVEN 60 65 62.5 DSDP INITIAL REPORTS 43 384 UPPER CRETACEOUS MAESTRICHTIAN 168.0 173.6 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 65 70 67.5 DSDP INITIAL REPORTS 43 384 MAESTRICHTIAN 173.6 192.7 NO AGE GIVEN NO AGE GIVEN 65 70 67.5 DSDP INITIAL REPORTS 43 384 SANTONIAN ALBIAN 202.2 211.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 78 108 93 DSDP INITIAL REPORTS 43 384 LOWER CRETACEOUS 220.7 239.4 NO AGE GIVEN NO AGE GIVEN 100 135 117.5 DSDP INITIAL REPORTS 43 384 LOWER CRETACEOUS APTIAN 296.2 305.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 100 110 105 DSDP INITIAL REPORTS 43 384 APTIAN BARREMIAN 324.3 324.8 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 108 121 114.5 DSDP INITIAL REPORTS 43 384 LOWER CRETACEOUS 324.8 330.3 NO AGE GIVEN NO AGE GIVEN 100 135 117.5 DSDP INITIAL REPORTS