IODP Proceedings, Volume 317 Site U1353, Table T3. Microfossil bioevents, Site U1353. Notes: CN = calcareous nannofossil, PF = planktonic foraminifer, BF = benthic foraminifer. LO = lowest occurrence, HO = highest occurrence. Core, section, interval (cm) Top Core, section, interval (cm) Bottom Microfossil Bioevents, unconformities, and epoch boundaries Age (Ma) Depth CSF-A (m) Top Depth CSF-A (m) Bottom Depth CSF-A (m) Midpoint Depth CSF-A (m) ± Comments 317-U1353A- 317-U1353A- 4H-CC 5H-CC CN LO Emiliania huxleyi (NN21 base) 0.29 (± 0.03) 26.72 34.08 30.40 3.68 317-U1353B- 317-U1353B- 3H-CC 4H-CC CN LO Emiliania huxleyi (NN21 base) 0.29 (± 0.03) 26.06 27.67 26.87 0.80 4H-CC 4H-CC PF Truncorotalia truncatulinoides <1.1 27.67 27.67 27.67 0.00 8H-CC 9H-CC BF HO Siphotexturalia wairoana 0.34 (± 0.1) 56.84 61.90 59.37 2.53 10H-CC 11H-CC CN HO Pseudoemiliania lacunosa (NN20 base) 0.44 (± 0.01) 67.50 73.19 70.35 2.84 10H-CC 11H-CC BF HO Bolivinita pliozea 0.60 (± 0.2) 67.50 73.19 70.35 2.84 12H-CC 14X-CC Unconformity, ~0.8 m.y. missing 80.12 80.77 80.45 0.33 12H-CC 14X-CC CN LO Gephyrocapsa omega 1.01 (± 0.2) 80.12 80.77 80.45 0.33 12H-CC 14X-CC CN HO Gephyrocapsa >5.5 μm 1.26 (± 0.05) 80.12 80.77 80.45 0.33 14X-CC 16X-CC CN HO Helicosphaera sellii 1.34 (± 0.01) 80.77 97.20 88.99 8.22 16X-CC 18X-CC CN LO Gephyrocapsa >5.5 μm 1.56 (± 0.05) 97.20 108.44 102.82 5.62 16X-CC 18X-CC CN LO Gephyrocapsa >4 μm 1.69 (± 0.05) 97.20 108.44 102.82 5.62 20H-1, 107 21H-CC CN LO Gephyrocapsa caribbeanica 1.73 (± 0.01) 118.27 121.16 119.72 1.44 21H-CC 23H-CC Pliocene/Pleistocene boundary 1.81 121.16 135.71 128.44 7.28 21H-CC 23H-CC Unconformity, late Pliocene missing? 121.16 135.71 128.44 7.28 21H-CC 23H-CC CN HO Reticulofenestra ampla 2.78 (± 0.1) 121.16 135.71 128.44 7.28 24H-CC 25H-CC PF HO Zeaglobigerina woodi 2.7 (± 0.1) 139.67 142.86 141.27 1.60 27H-CC 28H-1, 124 CN HO Reticulofenestra pseudoumbilicus 3.70 (± 0.05) 149.68 150.64 150.16 0.48 59H-CC 60H-CC PF LO Globoconella inflata s.s. 4.3 (± 0.3) 256.04 257.69 256.87 0.82 Poorly constrained 88X-CC 89X-CC CN HO Cyclicargolithus floridanus 12.04 (± 0.1) 510.52 518.66 514.59 4.07 Two specimens 98X-CC 98X-CC CN middle-early Miocene specimens of Helicosphaera vedderi 604.60 604.60 604.60