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 50 415 A LOWER EOCENE 349.0 357.5 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 50 415 A UPPER PALEOCENE 423.5 433.0 NO AGE GIVEN NO AGE GIVEN 53.5 60 56.75 DSDP INITIAL REPORTS 50 415 A PALEOCENE 433.0 452.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 53.5 65 59.25 DSDP INITIAL REPORTS 50 415 A UPPER PALEOCENE 452.5 453.2 NO AGE GIVEN NO AGE GIVEN 53.5 60 56.75 DSDP INITIAL REPORTS 50 415 A LOWER PALEOCENE 453.2 509.5 NO AGE GIVEN NO AGE GIVEN 60 65 62.5 DSDP INITIAL REPORTS 50 415 A CONIACIAN ALBIAN 509.5 577.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 82 108 95 DSDP INITIAL REPORTS 50 415 A MIDDLE CENOMANIAN 577.5 889.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 95 97.5 96.25 DSDP INITIAL REPORTS 50 415 A LOWER CENOMANIAN 956.0 965.5 NO AGE GIVEN NO AGE GIVEN 97.5 100 98.75 DSDP INITIAL REPORTS 50 415 A UPPER ALBIAN 1032.0 1079.5 NO AGE GIVEN NO AGE GIVEN 100 104 102 DSDP INITIAL REPORTS