Initial Reports Volume 189 "Chapter 5, Table T13. Biostratigraphic events, Site 1170. " "Notes: See individual microfossil sections in this chapter for top and bottom samples of event intervals. Mean depth is the midpoint between the top and bottom sample of the event interval. Group: N = nannofossil, R = radiolarian, D = diatom, P = planktonic foraminifer, C = dinocyst. FO = first occurrence, LO = last occurrence. LAO = last abundant occurrence, FAO = first abundant occurrence." Interval (cm) Group Bioevent Age (Ma) Hole Top Bottom Mean depth (mbsf) Error bar (m) N FO Emiliania huxleyi 0.26 1170A Top of core 1H-CC 0.82 0.82 R LO Stylatractus universus 0.45 1170A 1H-CC 2H-CC 6.66 10.03 N LO Psuedoemiliana lacunosa 0.46 1170A 1H-CC 2H-CC 6.66 5.02 D LO Actinocyclus ingens 0.64 1170A 2H-CC 3H -CC 16.21 9.08 D LO Fragilariopsis barronii 1.44 1170A 4H-CC 5H -CC 34.24 10.33 N LO Calcidiscus macintyrei 1.67 1170A 4H-CC 5H-CC 34.24 5.17 D LO Proboscia baboi 1.80 1170A 4H-CC 5H-CC 34.24 10.33 P FO Globorotalia truncatulinoides 1.96 1170A 3H-CC 4H-CC 24.91 8.32 R LO Pseudocubus vema 2.40 1170A 5H-CC 6H-CC 44.22 9.63 D LO Thalassiosira complicata 2.50 1170A 7H-CC 8H-CC 63.61 10.72 D LO Thalassiosira inura 2.50 1170A 7H-CC 8H-CC 63.61 10.72 D LO Fragilariopsis weaveri 2.65 1170A 7H-CC 8H-CC 63.61 10.72 C LO Invertocysta tabulata 2.65 1170A 1H-CC 4H-CC 15.36 13.72 P FO Globorotalia inflata 3.20 1170A 7H-CC 8H-CC 63.16 9.25 N LO Reticulofenestra pseudoumbilica 3.75 1170A 6H-CC 7H-CC 53.64 4.61 D FO Thalassiosira complicata 4.44 1170A 11H-CC 12H-CC 101.67 9.57 R FO Pseudocubus vema 4.50 1170A 6H-CC 7H-CC 53.64 9.22 P LO Globorotalia pliozea 4.60 1170A 14H-CC 15H-CC 128.84 10.21 D FO Thalassiosira inura 4.92 1170A 11H-CC 12H-CC 101.67 9.57 R LO Lychnocanoma grande 5.00 1170A 9H-CC 10H-CC 82.67 9.62 N LO Ceratolithus acutus 5.05 1170A 12H-CC 13H-CC 110.85 4.40 P FO Globorotalia puncticulata 5.30 1170A 16H-CC 17H-CC 148.61 9.72 N FO Ceratolithus acutus 5.37 1170A 12H-CC 13H-CC 110.85 4.40 R LCO Stichocorys delmontensis 6.04 1170A 13H-CC 14H-CC 119.49 8.49 R LO Amphymenium challengerae 6.10 1170A 17H-CC 18H-CC 158.64 10.13 D LO Actinocyclus ingens var. ovalis 6.27 1170A 16H-CC 17H-CC 148.66 9.82 R FO Amphymenium challengerae 6.60 1170A 18H-CC 19H-CC 165.42 3.43 P FO Globorotalia conomiozea 6.90 1170A 18H-CC 19X-CC 165.42 3.43 P LO Paragloborotalia continuosa 8.00 1170A 18H-CC 19X-CC 165.42 3.43 P LO Paragloborotalia nympha 10.10 1170A 19X-CC 20X-CC 170.84 7.41 D LO Denticulopsis dimorpha 10.70 1170A 22X-CC 23X-CC 196.57 9.04 P LO Paragloborotalia mayeri 11.40 1170A 21X-CC 22X-CC 186.48 11.14 R FO Dictyophimus splendeus 11.80 1170A 19X-CC 20X-CC 170.84 7.41 N LO Cyclicargolithus floridanus 11.90 1170A 27X-CC 28X-CC 245.04 5.66 P FO Paragloborotalia mayeri 12.10 1170A 29X-CC 30X-CC 264.83 10.78 D FO Denticulopsis dimorpha 12.20 1170A 27X-CC 28X-CC 245.04 11.32 R RD Cyrtocapsella tetrapera 12.50 1170A 27X-CC 28X-CC 245.04 11.32 D LO Actinocyclus ingens var. nodus 12.71 1170A 27X-CC 28X-CC 245.04 11.32 D FO Actinocyclus ingens var. nodus 14.38 1170A 32X-CC 33X-CC 295.25 8.71 D LO Cavitatus (Synedra) jouseanus 14.61 1170A 32X-CC 33X-CC 295.25 8.71 D LO Denticulopsis maccollumii 14.70 1170A 33X-CC 34X-CC 305.00 10.79 R LO Lychnocanoma nipponica nipponica 15.70 1170A 32X-CC 33X-CC 295.25 8.71 N LO Helicosphaera ampliaperta 16.00 1170A 29X-CC 30X-CC 264.83 5.39 P FO Praeorbulina curva 16.30 1170A 30X-CC 31X-CC 276.12 11.24 R LO Cenosphaera coronata 16.70 1170A 35X-CC 36X-CC 322.98 9.09 N FO Calcidiscus premacintyrei 17.40 1170A 34X-CC 35X-CC 314.41 4.02 P FO Globigerinoides trilobus 18.80 1170A 36X-CC 37X-CC 333.01 11.58 P FO Globoturborotalita connecta 20.90 1170A 37X-CC 38X-CC 342.99 8.38 D LO Azpeitia gombosii 21.10 1170A 41X-CC 42X-CC 381.85 10.64 P FO Globoturborotalita woodi 22.60 1170A 38X-CC 39X-CC 351.86 9.35 P FO Globoquadrina dehiscens 23.20 1170A 41X-CC 42X-CC 381.85 10.64 R FO Cyrtocapsella tetrapera 23.60 1170A 41X-CC 42X-CC 381.85 10.64 N LO Reticulofenestra bisecta 23.90 1170A 41X-CC 42X-CC 381.85 5.32 N LO Chiasmolithus altus 26.10 1170A 43X-CC 44X-CC 401.23 4.60 D LO Coscinodiscus lewisianus var. levis 28.20 1170A 42X-CC 43X-CC 391.90 9.46 P FO Chiloguembelina cubensis 28.50 1170A 42X-CC 43X-CC 391.90 9.46 D FO Coscinodiscus lewisianus var. levis 28.50 1170A 43X-CC 44X-CC 401.23 9.20 D FO Coscinodiscus lewisianus var. levis 28.50 1170D 1R - CC 2R - CC 432.39 5.12 D LO Rocella vigilans (small) 28.80 1170A 43X-CC 44X-CC 401.23 9.20 P LO Subbotina angiporoides 30.00 1170A 44X-CC 45X-CC 407.94 4.22 D FO Rocella vigilans (small) 30.24 1170A 48X-CC 49X-CC 442.76 14.99 D FO Cavitatus (Synedra) jouseanus 30.62 1170D "4R-1, 120" 4R - CC 454.43 0.53 N FO Cyclicargolithus abisectus 31.20 1170D 4R-CC 5R-CC 459.60 4.61 N LO Reticulofenestra reticulata 35.80 1170D 6R-CC "8R-5, 50" 479.54 6.82 C FOC Alterbidinium distinctum 37.00 1170D 8R-CC 9R-CC 493.01 9.03 N LO Chiasmolithus solitus 38.20 1170D 12R-CC 13R-CC 529.71 5.12 C LO Cerebryocysta bartonensis 38.60 1170D 11R-CC 12R-CC 521.30 2.99 C LOA Enneadocysta partridgei 39.50 1170D 16R-CC 17R-CC 581.44 3.67 N FO Reticulofenestra reticulata 41.20 1170D 12R-CC 13R-CC 529.71 5.12 N FO Reticulofenestra umbilica 42.00 1170D 37R-CC 38R-CC 774.21 5.48 C FOA Enneadocysta partridgei 43.00 1170D 36R-CC 38R-CC 770.13 9.57