Initial Reports Volume 189 "Chapter 6, Table T13. Biostratigraphic events identified, Site 1171." "Notes: Mean depth is the midpoint between the top and bottom sample of the event interval. D = diatom, R = radiolarian, N = nannofossil, P = planktonic foraminifer, C = dinocyst. LO = last occurrence, FO = first occurrence, LCO = last consistent occurrence, FCO = first consistent occurrence, LAO = last abundant occurrence, FAO = first abundant occurrence." Age Interval (cm) Depth (mbsf) Top Bottom Mean Hole Group Datum (Ma) Top Bottom Top Bottom Mean +/- (mcd) (mcd) (mcd) +/- 1171A D LO Fragilariopsis reinholdii 0.7 1H-CC 2H-CC 7.02 16.10 11.56 4.54 7.02 16.84 11.93 4.91 1171A R LO Antarctissa sp. G 0.7 2H-CC 3H-CC 16.1 24.76 20.43 4.33 16.84 25.32 21.08 4.24 1171A D LO Thalassiosira fasciculata 0.7 1H-CC 2H-CC 7.02 16.10 11.56 4.54 7.02 16.84 11.93 4.91 1171A D LO Fragilariopsis barronii 1.4 2H-CC 3H-CC 16.10 24.76 20.43 4.33 16.84 25.32 21.08 4.24 1171A D LO Thalassiosira tetraoestrupii var. reimeri 1.5 2H-CC 3H-CC 16.10 24.76 20.43 4.33 16.84 25.32 21.08 4.24 1171A D LO Proboscia barboi 1.8 2H-CC 3H-CC 16.10 24.76 20.43 4.33 16.84 25.32 21.08 4.24 1171A D LO Thalassiosira complicata 2.5 3H-CC 4H-CC 24.76 35.78 30.27 5.51 25.32 36.96 31.14 5.82 1171A D LO Thalassiosira inura 2.5 3H-CC 4H-CC 24.76 35.78 30.27 5.51 25.32 36.96 31.14 5.82 1171A D LO Thalassiosira insigna 2.6 3H-CC 4H-CC 24.76 35.78 30.27 5.51 25.32 36.96 31.14 5.82 1171A D LO Fragilariopsis weaveri 2.7 3H-CC 4H-CC 24.76 35.78 30.27 5.51 25.32 36.96 31.14 5.82 1171A D FO Fragilariopsis weaveri 3.4 6H-CC 7H-CC 55.17 64.20 59.685 4.52 47.26 57.43 52.35 5.09 1171A R FO Pseudocubus vema 4.5 4H-CC 5H-CC 35.78 45.36 40.57 4.79 36.96 47.26 42.11 5.15 1171A N LO Amaurolithus delicatus 4.6 5H-CC 6H-CC 45.36 55.17 50.27 4.91 47.26 57.43 52.35 5.09 1171A R LCO Stichocorys peregrina 5.0 4H-CC 5H-CC 35.78 45.36 40.57 4.79 36.96 47.26 42.11 5.15 1171A R LO Lychnocanoma grande 5.0 5H-CC 6H-CC 45.36 55.17 50.265 4.91 47.26 57.43 52.35 5.09 1171A R LO Amphymenium challengerae 6.1 6H-CC 7H-CC 55.17 64.2 59.685 4.52 57.43 67.76 62.60 5.17 1171A R FO Amphymenium challengerae 6.6 7H-CC 8H-CC 64.2 73.05 68.625 4.43 67.76 77.75 72.76 5.00 1171A D FO Fragilariopsis reinholdii 8.1 8H-CC 9H-CC 73.05 82.40 77.725 4.68 77.75 87.84 82.80 5.05 1171A D FO Actinocyclus ingens var. ovalis 8.7 8H - CC 9H-CC 73.05 82.40 77.725 4.68 77.75 87.84 82.80 5.05 1171A D LO Denticulopsis dimorpha 10.7 10H-CC 11H-CC 92.66 102.49 97.575 4.92 98.54 109.25 103.90 5.35 1171A D FO Actinocyclus fryxellae 11.1 13X-CC 14X-CC 113.66 120.53 117.095 3.44 120.4 127.27 123.84 3.43 1171A R RD Cyrtocapsella japonica 11.6 11H-CC 12H-CC 102.49 110.62 106.555 4.07 109.25 117.36 113.31 4.05 1171C N LO Psuedoemiliana lacunosa 0.5 1H-0 1H-CC 0.00 9.65 4.83 4.83 0.44 10.096 5.27 4.83 1171C N LO Calcidiscus macintyrei 1.7 2H-CC 3H-CC 19.24 28.53 23.89 4.65 19.98 28.58 24.28 4.30 1171C R LO Pseudocubus vema 2.4 2H-CC 3H-CC 19.24 28.56 23.9 4.66 19.98 28.58 24.28 4.30 1171C P FO Globorotalia inflata 3.2 3H-CC 4H-CC 28.56 37.80 33.18 4.62 28.58 38.14 33.36 4.78 1171C N LO Reticulofenestra pseudoumbilica 3.8 4H-CC 5H-CC 37.80 47.86 42.83 5.03 38.14 49.46 43.80 5.66 1171C N LO Triquetrorhabdulus rugosus 5.3 6H-CC 7H-CC 57.45 67.13 62.29 4.84 59.83 70.51 65.17 5.34 1171C P FO Globorotalia puncticulata 5.3 6H-CC 7H-CC 57.45 67.13 62.29 4.84 59.83 70.51 65.17 5.34 1171C D LO Actinocyclus ingens var. ovalis 6.3 6H-CC 7H-CC 57.45 67.13 62.29 4.84 59.83 70.51 65.17 5.34 1171C P FO Globorotalia conomiozea 6.9 6H-CC 7H-CC 57.45 67.13 62.29 4.84 59.83 70.51 65.17 5.34 1171C P LO Paragloborotalia nympha 10.1 7H-CC 8H-CC 67.13 75.33 71.23 4.10 70.51 80.71 75.61 5.10 1171C N LO Coccolithus miopelagicus 10.9 13X-CC 14X-CC 115.72 123.49 119.61 3.89 122.4 130.17 126.29 3.88 1171C P LO Paragloborotalia mayeri 11.4 10H-CC 11H-CC 94.40 104.12 99.26 4.86 100.62 111.06 105.84 5.22 1171C D LO Denticulopsis praedimorpha 11.5 13X-CC 14X-CC 115.72 123.49 119.61 3.89 122.4 130.17 126.29 3.88 1171C D LO Nitzschia denticuloides 11.7 13X-CC 14X-CC 115.72 123.49 119.61 3.89 122.4 130.17 126.29 3.88 1171C N LO Cyclocargolithus floridanus 11.9 17X-CC 18X-CC 150.18 162.93 156.56 6.38 156.86 169.61 163.24 6.38 1171C P FO Paragloborotalia mayeri 12.1 16X-CC 17X-CC 139.66 150.18 144.92 5.26 146.34 156.86 151.60 5.26 1171C D LO Proboscia barboi 12.5 14X-CC 15X-CC 123.49 134.45 128.97 5.48 130.17 141.13 135.65 5.48 1171C R RD Cyrtocapsella tetrapera 12.5 14X-CC 15X-CC 123.49 134.45 128.97 5.48 130.17 141.13 135.65 5.48 1171C D LO Actinocyclus ingens var. nodus 12.7 14X-CC 15X-CC 123.49 134.45 128.97 5.48 130.17 141.13 135.65 5.48 1171C D FO Actinocyclus ingens var. nodus 14.4 21X-CC 22X-CC 190.11 198.93 194.52 4.41 196.79 205.61 201.20 4.41 1171C D LO Cavitatus (Synedra) jouseanus 14.6 22X-CC 23X-CC 198.93 210.12 204.53 5.60 205.61 216.8 211.21 5.60 1171C P FO Orbulina suturalis 15.1 20X-CC 21X-CC 181.10 190.11 185.61 4.51 187.78 196.79 192.29 4.51 1171C R FO Lychnocanoma nipponica 15.7 19X-CC 20X-CC 172.76 181.1 176.93 4.17 179.44 187.78 183.61 4.17 1171C P FO Praeorbulina curva 16.3 21X-CC 22X-CC 190.11 198.93 194.52 4.41 196.79 205.61 201.20 4.41 1171C R LO Cenosphaera coronata 16.7 22X-CC 23X-CC 198.93 210.12 204.525 5.60 205.61 216.8 211.21 5.60 1171C N FO Calcidiscus premacintyrei 17.4 22X-CC 23X-CC 198.93 210.12 204.53 5.60 205.61 216.8 211.21 5.60 1171C P FO Globigerinoides trilobus 18.8 22X-CC 23X-CC 198.93 210.12 204.53 5.60 205.61 216.8 211.21 5.60 1171C P FO Globoturborotalita connecta 20.9 23X-CC 24X-CC 210.12 219.74 214.93 4.81 216.8 226.42 221.61 4.81 1171C D LO Rocella gelida 22.5 25X-CC 26X-CC 228.48 237.56 233.02 4.54 235.16 244.24 239.70 4.54 1171C P FO Globoturborotalita woodi 22.6 25X-CC 26X-CC 228.48 237.56 233.02 4.54 235.16 244.24 239.70 4.54 1171C N LO Reticulofenestra bisecta 23.9 28X-CC 29X-CC 253.79 264.83 259.31 5.52 260.47 271.51 265.99 5.52 1171C D FO Rocella gelida 26.5 29X-CC 30X-CC 264.83 272.87 268.85 4.02 271.51 279.55 275.53 4.02 1171C P LO Subbotina angiporoides 30.0 29X-CC 30X-CC 264.83 272.87 268.85 4.02 271.51 279.55 275.53 4.02 1171C D FO Rocella vigilans (small) 30.2 30X-CC 31X-CC 272.87 274.43 273.65 0.78 279.55 281.11 280.33 0.78 1171C D FO Cavitatus (Synedra) jouseanus 30.6 30X-CC 31X-CC 272.87 274.43 273.65 0.78 279.55 281.11 280.33 0.78 1171C C LO Areosphaeridium diktyoplokum 33.3 30X-CC 31X-CC 272.87 274.43 273.65 0.78 279.55 281.11 280.33 0.78 1171D R FO Cyrtocapsella tetrapera 23.6 2R-CC 3R-CC 260.68 271.34 266.01 5.33 268.8 281.1 274.95 6.15 1171D N LO Chiasmolithus altus 26.0 "3R-3, 2" "3R-3, 20" 269.62 269.80 269.71 0.09 279.4 279.6 279.50 0.10 1171D D FO Rocella gelida 26.5 2R-CC 3R-CC 260.68 271.34 266.01 5.33 268.8 281.1 274.95 6.15 1171D D FO Rocella vigilans (small) 30.24 2R-CC 3R-CC 260.68 271.34 266.01 5.33 268.8 281.1 274.95 6.15 1171D D FO Cavitatus (Synedra) jouseanus 30.62 2R-CC 3R-CC 260.68 271.34 266.01 5.33 268.8 281.1 274.95 6.15 1171D N LO Ismolithus recurvus 31.80 "3R-3, 20" 3R-CC 269.80 271.39 270.6 0.8 279.6 281.1 280.4 0.8 1171D N LO Reticulofenestra umbilica 32.3 "3R-3, 20" 3R-CC 271.3 280.6 276.0 4.6 279.6 281.1 280.4 0.8 1171D N LO Reticulofenestra oamaruensis 33.70 "3R-3, 20" 3R-CC 268.80 271.36 270.1 1.3 279.6 281.1 280.4 0.8 1171D N LO Reticulofenestra reticulata 35.0 4R-CC 5R-CC 280.6 287.5 284.1 3.5 290.4 297.3 293.8 3.5 1171D N FO Ismolithus recurvus 36.0 4R-CC 5R-CC 280.6 287.5 284.1 3.4 290.4 297.3 293.9 3.4 1171D C FOC Alterbidinium distinctum 37.0 4R-CC 5R-CC 280.59 287.53 284.06 3.47 290.37 297.31 293.84 3.47 1171D C LO Cerebrocysta bartonensis 38.6 6R-CC 7R-CC 295.26 302.3 298.78 3.52 305.04 312.08 308.56 3.52 1171D C LOA Enneadocysta partridgei 39.5 15R-CC 17R-CC 374.35 398.4 386.375 12.025 384.13 408.18 396.16 12.03 1171D N LO Chiasmolithus solitus 40.4 6R-CC "7R-1, 25" 300.7 300.3 295.3 5.0 300.7 310.4 305.5 4.9 1171D N FO Reticulofenestra reticulata 42.0 6R-CC "7R-1, 25" 300.7 300.3 295.3 5.0 300.7 310.4 305.5 4.9 1171D C FO Cerebrocysta bartonensis 43.0 29R-CC 35R-CC 516.79 573.86 545.325 28.535 526.57 583.64 555.11 28.54 1171D C FOA Enneadocysta partridgei 43.0 29R-CC 35R-CC 516.79 573.86 545.325 28.535 526.57 583.64 555.11 28.54 1171D N FO Reticulofenestra umbilica 43.7 25R-CC 26R-CC 476.8 488.0 482.4 5.6 486.6 497.8 492.2 5.6 1171D C LO Membranophoridium perforatum 46.3 29R-CC 35R-CC 516.79 573.86 545.325 28.535 526.57 583.64 555.11 28.54 1171D C LO Hystrichokolpoma spinosa 47.0 35R-CC 40R-CC 573.86 622.7 598.28 24.42 583.64 632.48 608.06 24.42 1171D C LO Charlesdowniea edwardsii 48.0 40R-CC 44R-CC 622.7 660.71 641.705 19.005 632.48 670.49 651.49 19.01 1171D C LO Charlesdowniea coleothrypta 48.5 40R-CC 44R-CC 622.7 660.71 641.705 19.005 632.48 670.49 651.49 19.01 1171D C FO Pyxidinopsis waipawaense 49.5 44R-CC 50R-CC 660.71 718.48 689.595 28.885 670.49 728.26 699.38 28.89 1171D C FO Charlesdowniea coleothrypta 50.3 44R-CC 50R-CC 660.71 718.48 689.595 28.885 670.49 728.26 699.38 28.89 1171D C FO Charlesdowniea edwardsii 50.3 44R-CC 50R-CC 660.71 718.48 689.595 28.885 670.49 728.26 699.38 28.89 1171D C FO Areosphaeridium diktyoplokum 51.7 50R-CC 56R-CC 718.48 771.4 744.94 26.46 728.26 781.18 754.72 26.46 1171D C FO Membranophoridium perforatum 53.0 50R-CC 56R-CC 718.48 771.4 744.94 26.46 728.26 781.18 754.72 26.46 1171D C LO Dracodinium waipawaense 53.2 60R-CC 70R-CC 814.6 908.07 861.335 46.735 824.38 917.85 871.12 46.74 1171D C FO Dracodinium waipawaense 53.5 70R-CC 71R-CC 908.07 920.2 914.135 6.065 917.85 928.9 923.38 5.52 1171D C FO Hystrichokolpoma spinosa 53.5 70R-CC 71R-CC 908.07 920.2 914.135 6.065 917.85 928.9 923.38 5.52 1171D C FO Deflandrea phosphoriticacpx 55.0 72R-CC 73R-CC 920.2 939.51 929.855 9.655 939.07 949.29 944.18 5.11