Scientific Results, Volume 177 M. Marino and J.A. Flores Chapter 7, Table T2. Miocene to Pliocene distribution of calcareous nannofossils at Site 1090. Notes: Abundance: VA = very abundant, A = abundant, C = common, F = few, R = rare, RR = very rare. Preservation: G = good, M = moderate, P = poor. R = reworked. Zonation is by Martini (1971). Biozone Age Leg Site Hole Core Type Section S. Top (cm) S. Bot (cm) Depth (mbsf) Depth (mcd) Abundance Preservation Amaurolithus delicatus Calcidiscus cf. C. radiatus Calcidiscus leptoporus Calcidiscus macintyrei Calcidiscus sp. Calcidiscus tropicus Coccolithus miopelagicus Coccolithus pelagicus Coronocyclus sp. Cyclicargolithus abisectus Cyclicargolithus floridanus Dictyococcites antarticus Dictyococcites spp. (<5 µm) Discoaster adamanteus Discoaster asymmetricus Discoaster cf. D. berggrenii Discoaster brouweri Discoaster decorus Discoaster deflandrei gr. Discoaster intercalaris Discoaster pentaradiatus Discoaster spp. Discoaster surculus Discoaster tamalis Discoaster tristillifer Discoaster variabilis gr. Gephyrocapsa medium (4-5.5 µm) Gephyrocapsa small Helicosphaera carteri Helicosphaera neogranulata Helicosphaera sellii Minylitha coonvallis Pseudoemiliania lacunosa (>4 µm) Pyrocyclus sp. Reticulofenestra bisecta R. bisecta filewiczii R. bisecta stavensis Reticulofenestra (cycles > 7 µm) Reticulofenestra (cycles 3-5 µm) Reticulofenestra (5-7 µm) Reticulofenestra minuta (<3 µm) Reticulofenestra minutula (3-5 µm) Reticulofenestra pseudoumbilicus (>7 µm) Reticulofenestra (broken cycles) Sphenolithus belemnos Sphenolithus cometa Sphenolithus conicus Sphenolithus disbelemnos Sphenolithus dissimilis Sphenolithus moriformis Sphenolithus abies-neoabies Sphenolithus tintinnabulum Tetralithoides symeonidesii Thoracosphaera sp. Triquetrorhabdulus carinatus Triquetrorhabdulus sp. NN19 Pleistoc. 177 1090 B 5 H 5 30 30 38.7 42.31 A G F 1 R C C R A F C F 177 1090 B 5 H 5 130 130 39.7 43.31 A G C R A C R C C A C Pliocene 177 1090 B 5 H 6 30 30 41.2 43.81 A G F F C C A VA A 177 1090 B 5 H 6 130 130 42.2 44.81 A G A R A C A A A 177 1090 B 6 H 1 30 30 42.5 44.1 A M R R C F R C R VA R 177 1090 B 6 H 1 130 130 43.5 45.1 A M C R C 1 F R F C VA NN18 177 1090 B 6 H 2 130 130 45 46.6 A M C R A 7 F A C A C 177 1090 B 6 H 3 130 130 46.5 48.1 A M A C 5 F A R A R 177 1090 B 6 H 4 130 130 48 49.6 A M C R A 6 R F C A A A 177 1090 B 6 H 5 130 130 49.5 51.1 A M F R VA 4 C A A A 177 1090 B 6 H 6 130 130 51 52.6 A P C R C 6 A A A A 1 NN12-NN17 177 1090 B 6 H 7 30 30 51.5 53.1 A M A R C 16 4 C A A A 177 1090 B 6 H CC 9 14 51.84 53.44 A M C R C 2 R C A A A 177 1090 B 7 H CC 12 17 59.29 65.59 A M C F C 2 2 C F A F 177 1090 B 8 H 1 30 30 61.5 65.21 A M F R F A 3 5 1 1 2 RR R VA R 177 1090 B 8 H 1 120 120 62.4 66.11 A P F A 1 4 1 C R R RR A RR 177 1090 B 8 H 2 30 30 63 66.71 A M C R A 2 7 6 4 C 2 F R A R 1 177 1090 B 8 H 2 140 140 64.1 67.81 A M C R A x 2 4 4 2 x 3 C <4mm R A R C 177 1090 B 8 H 3 30 30 64.5 68.21 A P 2 C F C R x 6 3 C R C R C 177 1090 B 8 H 4 30 30 66 69.71 A M C A VA 2 1 3 3 F F F 177 1090 B 8 H 4 139 139 67.09 70.8 A M 2 C R C VA 2 2 2 4 1 4 C x A C ? 177 1090 B 8 H 5 30 30 67.5 71.21 A VP R C A F A 1? F 1 C Miocene 177 1090 B 8 H 5 140 140 68.6 72.31 R VP R 1 F C R C C 1cf. RR R ? 177 1090 B 8 H 6 30 30 69 72.71 F VP R R F C R F C R C 177 1090 B 8 H CC 18 23 69.63 73.34 F P R R C F C R C 177 1090 B 9 H 3 140 140 75.1 78.79 A P R R R R r A R 1 R RR C F RR R C R 177 1090 B 9 H 4 30 30 75.5 79.19 F VP R 1 F r C R R R C R C R 177 1090 B 9 H 4 138 138 76.58 80.27 A VP 1 A R C R A R 1 A R R 177 1090 B 9 H 5 30 30 77 80.69 A VP R R R C R R R F F F F F C R 177 1090 B 9 H 5 140 140 78.1 81.79 C VP 1 C F R R r F R F R F A R 1 177 1090 B 9 H 6 30 30 78.5 82.19 A P R A R A R F A 3 R 177 1090 B 9 H 6 140 140 79.6 83.29 A VP R A R R F RR r F A RR R R R 177 1090 B 9 H 7 10 10 79.8 83.49 A VP ? R R 1 A R R R F r R R R R R R cf. 177 1090 B 9 H CC 13 18 79.99 83.68 F P R F F NN3 177 1090 B 10 H 1 140 140 81.6 86.17 A P R R A R C C F F R R A 1 R R F F C R 177 1090 B 10 H 2 140 140 83.1 87.67 A P R A RR RR C VA r F F F ? RR RR RR F R F 1 177 1090 B 10 H 3 140 140 84.6 89.17 A VP A C R R VA C C cf. 3 R R 1 ? 1? ? 177 1090 B 10 H 4 130 130 86 90.57 A VP A A C A VA A R R R R F NN2 177 1090 B 10 H CC 19 24 88.41 92.98 C P R F F 177 1090 B 11 H 1 30 30 90 93.99 C VP RR RR F R A F VA r F RR RR 177 1090 B 11 H 2 30 30 91.5 95.49 C VP RR C C F F C RR C RR R R R 177 1090 B 11 H 3 30 30 93 96.99 C VP C 1 R F F A F F R 177 1090 B 11 H 4 30 30 94.5 98.49 A VP 1 A C C A A A R A 1 RR 177 1090 B 11 H 5 30 30 96 99.99 A VP C C F C A F Fcf 1 177 1090 B 11 H 6 30 30 96.9 100.89 B 177 1090 B 11 H 6 130 130 97.9 101.89 C VP 1 R C R R R R A A R 1 1 177 1090 B 11 H 7 90 90 99 102.99 A P 1 C R R R A A cf. 1 177 1090 B 11 H CC 10 15 99.16 103.15 F P F F 177 1090 B 12 H 1 30 30 99.5 103.17 A P R C R R VA R R V C C 177 1090 B 12 H 2 30 30 101 104.67 A P R C R F A R R R 1 C A 1cf. RR 1 177 1090 B 12 H 3 130 130 103.5 107.17 A P RR F A R C A R R A A RR RR 1 177 1090 B 12 H 4 130 130 105 108.67 A VP F A R C C R R R A F RR cf. R R 1 177 1090 B 12 H 5 130 130 106.5 110.17 C VP F A F R C R A A 177 1090 B 12 H 6 130 130 108 111.67 A VP R A R R C R R A A C Rcf. R 1 177 1090 B 12 H CC 6 11 108.89 112.56 A M F C 177 1090 B 13 H 1 40 40 109 114.51 A VP R C R r VA RR R R RR cf. F R 1 177 1090 B 13 H 2 30 30 110.5 115.91 C VP F F R C RR RR R R 177 1090 B 13 H 2 130 130 111.5 116.91 C VP R VA R RR 177 1090 B 13 H 3 130 130 113 118.41 R VP VA R R R 177 1090 B 13 H 4 130 130 114.5 119.91 B 177 1090 B 13 H 5 130 130 116 121.41 C VP R VA R 177 1090 B 13 H 6 90 90 117.1 122.51 R VP RR VA RR 177 1090 B 13 H CC 0 5 117.12 122.53 B 177 1090 B 14 H 1 30 30 118.5 122.15 F VP R VA R 177 1090 B 14 H 2 30 30 120 123.65 F VP R VA R R 177 1090 B 14 H 3 30 30 121.5 125.15 A VP R VA R 177 1090 B 14 H 4 30 30 123 126.65 C VP R VA RR RR 177 1090 B 14 H 4 130 130 124 127.65 C VP R VA R R 177 1090 B 14 H 5 30 30 124.5 128.15 C VP VA RR RR R 177 1090 B 14 H 5 130 130 125.5 129.15 A VP C VA RR RR 177 1090 B 14 H 6 30 30 126 129.65 C VP F VA 177 1090 B 14 H CC 0 5 127.51 131.16 C P A C NN1 177 1090 B 15 H 1 30 30 128 134.49 A P VA F A R RR R F cf. R R 2 177 1090 B 15 H 1 130 130 129 135.49 A P VA R R A RR RR R RR R 1 R R R R 177 1090 B 15 H 2 30 30 129.5 135.99 A VP A cf. VA R RR 177 1090 B 15 H 2 130 130 130.5 136.99 A VP 1 A VA R R 1 RR 177 1090 B 15 H 3 30 30 131 137.49 A VP VA R A 1 R R R C RR R 177 1090 B 15 H 3 130 130 132 138.49 C VP A R VA RR 177 1090 B 15 H 4 30 30 132.5 138.99 A VP A RR R A C 177 1090 B 15 H 4 130 130 133.5 139.99 A VP RR A RR R A 1 1 R VA 177 1090 B 15 H 5 30 30 134 140.49 A VP R VA R R F F R 2 3 R A R 177 1090 B 15 H 5 130 130 135 141.49 A VP C R R VA RR RR RR 1 1 1 RR F R 177 1090 B 15 H 6 30 30 135.5 141.99 A P 1 F R A 1 R R 2 1 1 1 RR 177 1090 B 15 H 6 100 100 136.2 142.69 A P 1 C R A C R 1 1 R C 1 ? 177 1090 B 15 H CC 0 10 136.73 143.22 A P F C C