Table T2. Selected potentially age-indicative dinocyst events, Hole 1168A.
Datum Core, section, interval (cm) Depth (mbsf) Magneto chron* Age(Ma)
Top Bottom Top Bottom Mean Error

189-1168A- 189-1168A-





LO Amiculosphaera umbracula 2H-CC, 9-11 3H-3, 60-62 17 20.4 18.7 1.7 C1r.2r 1.6
LO Invertocysta spp. 3H-CC, 29-32 4H-3, 60-62 26.71 29.85 28.28 1.57 C2r? 2.5
LO Achomosphaera andalousiensis 8H-CC, 8-13 9H-3, 60-62 73.58 77.4 75.49 1.91 ? ?
FO Amiculosphaera umbracula 9H-3, 60-62 9H-CC, 27-32 77.4 82.98 80.19 2.79 ? ?
LO Reticulatosphaera actinocoronata 9H-CC, 27-32 10H-7, 60-62 82.98 92.9 87.94 4.96 ? ?
FO Achomosphaera andalousiensis 14X-CC, 25-30 15X-3, 60-62 125.8 131.5 128.65 2.85 ? ?
LO Labyrinthodinium truncatum 19X-6, 60-62 20X-2, 60-62 174.6 178.3 176.45 1.85 ? ?
LO Cerebrocysta poulsenii 19X-6, 60-62 20X-2, 60-62 174.6 178.3 176.45 1.85 ? ?
FO Cerebrocysta poulsenii 22X-5, 60-62 22X-CC, 29-34 202 205.1 203.55 1.55 ? ?
FO Labyrinthodinium truncatum 23X-5, 60-62 24X-7, 40-42 211.6 224 217.8 6.2 ? ?
LO Mendicodinium sp. A 23X-5, 60-62 24X-7, 40-42 211.6 224 217.8 6.2 ? ?
FO Mendicodinium sp. A 25X-4, 60-62 26X-4, 60-62 229.2 238.9 234.05 4.85 ? ?
FCO Impagidinium patulum 33X-3, 60-62 33X-6, 60-62 304.3 308.8 306.55 2.25 ? ?
LO Apteodinium australiense 35X-5, 60-62 36X-3, 60-62 326.2 332.8 329.5 3.3 C6n? 19.5
LO Hystrichokolpoma rigaudiae 37X-6, 60-62 38X-2, 60-62 346.9 350.5 348.7 1.8 C6r? 21
LO Glaphyrocysta spp. 40X-6, 60-62 41X-3, 60-62 375.7 380.9 378.3 2.6 C6Cn? 24
LO Ectosphaeropsis burdigalensis 44X-2, 63-64 44X-7, 33-35 408.23 415.13 411.68 3.45 C6Cr 24.5
LO Chiropteridium spp. 46X-1, 61-64 46X-4, 65-68 425.91 430.45 428.18 2.27 C7n1n 24.7
FO Chiropteridium spp. 50X-3, 60-62 50X-CC, 43-48 467.3 472.7 470 2.7 C7Ar 25.8
FO Ectosphaeropsis burdigalensis 51X-4, 60-62 52X-5, 60-62 478.4 489.5 483.95 5.55 C8n2n 26.4
LO Distatodinium biffii 53X-6, 60-62 54X-2, 60-62 500.6 504.2 502.4 1.8 C8r 26.8
LO Hystrichokolpoma sp. cf. Homotryblium oceanicum 57X-2, 60-62 57X-7, 60-62 533.2 540.1 536.65 3.45 C9n 27.5
LO Svalbardella spp. 57X-7, 60-62 58X-3, 60-62 540.1 544.3 542.2 2.1 C9n 27.8
FO Distatodinium biffii 57X-7, 60-62 58X-3, 60-62 540.1 544.3 542.2 2.1 C9n 27.8
FO Svalbardella spp. 58X-3, 60-62 58X-CC, 45-50 544.3 550.6 547.45 3.15 C9n/r 27.95
LO Wetzeliella gochtii 59X-6, 60-62 60X-2, 60-62 558.5 562.1 560.3 1.8 C9r 28.15
LO Hystrichokolpoma pusilla 60X-2, 60-62 60X-4, 60-62 562.1 565.1 563.6 1.5 C9r 28.2
LO Areoligera? semicirculata 60X-4, 60-62 61X-3, 60-62 565.1 573.2 569.15 4.05 C9r 28.3
FO Hystrichokolpoma pusilla 67X-4, 60-62 68X-3, 60-62 632.2 640.4 636.3 4.1 C10n2n 28.8
FO Invertocysta spp. 70X-2, 60-62 70X-3, 60-62 658.2 659.7 658.95 0.75 C10r 29.2
FO Hystrichokolpoma sp. cf. Homotryblium oceanicum 72X-2, 63-65 72X-4, 46-48 677.53 680.36 678.945 1.415 C10r 29.3
LO Corrudinium incompositum 73X-3, 57-59 74X-2, 63-65 688.57 696.83 692.7 4.13 C10r 29.4
FO Areoligera? semicirculata 74X-2, 63-65 74X-5, 60-62 696.83 701.3 699.065 2.235 C10r 29.45
FO Wetzeliella gochtii 74X-CC, 32-37 75X-3, 60-62 702.3 707.9 705.1 2.8 C10r 29.5
FO Apteodinium australiense 74X-CC, 32-37 75X-3, 60-62 702.3 707.9 705.1 2.8 C10r 29.5
LO Enneadocysta partridgei 77X-4, 60-62 78X-4, 60-62 728.72 737.2 732.96 4.24 C12n? 30.8
LO Stoveracysta ornata 78X-CC, 43-48 79X-3, 60-62 743.2 746.2 744.7 1.5 C12r? 31.3
LO Stoveracysta kakanuiensis 79X-3, 60-62 79X-5, 60-62 746.2 749.4 747.8 1.6 C12r? 31.3
FO Stoveracysta kakanuiensis 79X-5, 60-62 79X-CC, 34-39 749.4 752.5 750.95 1.55 C13r? 34.2
LO Cooksonidium capricornum 79X-CC, 34-39 80X-2, 60-62 752.5 754.4 753.45 0.95 C15n? 34.8
FO Stoveracysta ornata 84X-3, 60-62 84X-6, 60-62 794.4 798.8 796.6 2.2 C15r? 35.2
LO Hemiplacophora semilunifera 84X-3, 60-62 84X-6, 60-62 794.4 798.8 796.6 2.2 C15r? 35.2
FO Reticulatosphaera actinocoronata 84X-6, 60-62 84X-CC, 31-36 798.8 799.5 799.15 0.35 C15r? 35.3
FO Spiniferites mirabilis 84X-6, 60-62 84X-CC, 31-36 798.8 799.5 799.15 0.35 C15r? 35.3
LO Schematophora speciosa 86X-CC, 37-42 87X-2, 60-62 818.3 821.6 819.95 1.65 C16n1n? 35.35
LO Aireiana verrucosa 88X-1, 60-62 88X-6, 60-62 829.7 837.15 833.425 3.725 C16n2n? 35.5
FO Aireiana verrucosa 88X-6, 60-62 89X-3, 60-62 837.15 842.3 839.725 2.575 C16n2n? 35.6
LO Deflandrea convexa 92X-2, 60-62 92X-7, 55-57 863.5 870.8 867.15 3.65 C16n2n? 35.8
FO Schematophora speciosa 94X-3, 64-66 94X-CC, 33-39 876.97 878.1 877.535 0.565 C16n2n? 36
FO Cooksonidium capricornum 75X-2, 56-58 75X-CC, 24-29 879.56 880.4 879.98 0.42 C16n2n? 36

Notes: * = ages are derived from Stickley et al., this volume. LO = last occurrence, FO = first occurrence, FCO = first common occurrence.