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 56 436 PLEISTOCENE 0.0 84.0 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 56 436 PLEISTOCENE PLIOCENE 84.0 93.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0.011 5 2.506 DSDP INITIAL REPORTS 56 436 UPPER PLIOCENE 93.5 131.5 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 56 436 UPPER PLIOCENE LOWER PLIOCENE 131.5 160.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 1.8 5 3.4 DSDP INITIAL REPORTS 56 436 LOWER PLIOCENE 160.0 236.0 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 56 436 UPPER MIOCENE 236.0 312.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 56 436 MIDDLE MIOCENE 312.0 369.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 56 436 CRETACEOUS 378.5 388.0 NO AGE GIVEN NO AGE GIVEN 65 135 100 DSDP INITIAL REPORTS