Table T12. Biostratigraphic events, Site 1168.
|
Group
|
Bioevent
|
Age
(Ma) |
Sample
(cm) |
Depth
(mbsf) |
Depth
error (m) |
|---|---|---|---|---|---|
| N | FO Emiliania huxleyi | 0.3 | 1168B-1H-1, 72 | 0.64 | 0.09 |
| F | FO Globorotalia truncatulinoides | 2.0 | 1168B-2H-CC | 8.37 | 4.48 |
| N | LO Calcidiscus macintyrei | 1.7 | 1168A-2H-CC | 12.12 | 4.88 |
| N | LO Discoaster surculus | 2.6 | 1168A-3H-CC | 21.86 | 4.86 |
| C | LO Amiculosphaera umbracula | 2.7 | 1168A-6H-CC | 50.60 | 4.64 |
| C | LO Invertocysts tabulata | 2.7 | 1168A-6H-CC | 50.60 | 4.64 |
| N | LO Reticulofenestra pseudoumbilica | 3.8 | 1168A-6H-CC | 50.60 | 4.64 |
| F | FO Globorotalia inflata | 3.2 | 1168C-6H-CC | 51.92 | 4.35 |
| F | LO Globorotalia pliozea | 4.6 | 1168C-7H-CC | 56.65 | 3.39 |
| N | LO Amaurolithus delicatus | 4.6 | 1168A-7H-CC | 60.09 | 4.85 |
| F | FO Globoratalia puncticulata | 5.3 | 1168C-8H-CC | 68.87 | 5.84 |
| N | LO Ceratolithus acutus | 5.1 | 1168A-8H-CC | 69.39 | 4.46 |
| N | FO Ceratolithus acutus | 5.4 | 1168A-10H-CC | 88.20 | 5.22 |
| D | FO Fragilariopsis reinholdii | 8.1 | 1168A-14H-CC | 114.20 | 11.61 |
| R | LO Stichocorys delmontensis |
5.18-6.9
|
1168C-13X-CC | 115.50 | 3.00 |
| N | FO Amaurolithus primus | 7.2 | 1168A-14X-CC | 120.88 | 4.96 |
| F | FO Globorotalia conomiozea | 6.9 | 1168C-15X-CC | 129.20 | 4.34 |
| D | LO Actinocyclus ingens var. ovalis | 6.3 | 1168A-15H-CC | 129.35 | 3.54 |
| D | FO Actinocyclus ingens var. ovalis | 8.7 | 1168A-15H-CC | 129.35 | 3.54 |
| R | FO Stylacontarium aquilonarium | 7.0 | 1168A-15X-CC | 129.40 | 7.10 |
| F | LO Paragloborotalia continuosa | 8.0 | 1168C-16X-CC | 137.03 | 3.49 |
| C | FO Achomosphaera andalousiensis | 11.6 | 1168A-18X-CC | 145.35 | 19.54 |
| R | LO Cyrtocapsella japonica | 9.9 | 1168A-17X-CC | 149.60 | 9.40 |
| R | FO Cyrtocapsella japonica | 10.1 | 1168A-18X-CC | 159.60 | 10.60 |
| F | LO Paragloborotalia nympha | 10.1 | 1168C-21X-CC | 186.45 | 4.98 |
| F | LO Paragloborotalia mayeri | 11.4 | 1168C-22X-CC | 197.55 | 6.12 |
| N | LO Cyclicargolithus floridanus | 11.9 | 1168A-22X-CC | 199.87 | 5.25 |
| F | FO Paragloborotalia mayeri | 12.1 | 1168C-24X-CC | 217.28 | 3.39 |
| N | LO Sphenolithus heteromorphus | 13.6 | 1168A-26X-CC | 238.33 | 5.21 |
| F | FO Orbulina suturalis | 15.1 | 1168A-28X-CC | 256.79 | 3.51 |
| F | FO Praeorbulina curva | 16.3 | 1168A-29X-CC | 266.32 | 6.03 |
| N | FO Calcidiscus premacintyrei | 17.4 | 1168A-29X-CC | 266.32 | 6.03 |
| F | FO Globigerinoides trilobus | 18.8 | 1168A-31X-CC | 286.54 | 5.06 |
| N | FO Sphenolithus heteromorphus | 18.2 | 1168A-32X-CC | 296.09 | 4.50 |
| N | LO Sphenolithus belemnos | 18.3 | 1168A-32X-CC | 296.09 | 4.50 |
| C | LO Pyxidinopsis fairhavenensis | 15.5 | 1168A-34X-CC | 300.47 | 18.99 |
| N | FO Sphenolithus belemnos | 20.6 | 1168A-33X-CC | 305.28 | 4.69 |
| F | FO Globoturborotalita connecta | 20.9 | 1168A-34X-CC | 314.71 | 4.74 |
| F | FO Globorotalia woodi | 22.6 | 1168A-41X-CC | 381.81 | 5.27 |
| F | FO Globoquadrina dehiscens | 23.2 | 1168A-43X-CC | 401.31 | 4.70 |
| C | LO Glaphyrocysta spp. | 25.0 | 1168A-46X-CC | 415.86 | 19.25 |
| N | LO Reticulofenestra bisecta | 23.9 | 1168A-47X-CC | 439.66 | 4.56 |
| N | LO Chiasmolithus altus | 26.1 | 1168A-55X-CC | 516.45 | 4.71 |
| F | LO Chiloguembelina cubensis | 28.5 | 1168A-60X-CC | 564.73 | 4.41 |
| N | LO Sphenolithus distentus | 27.5 | 1168A-70X-CC | 658.22 | 3.28 |
| F | LO Subbotina angiporoides | 30.0 | 1168A-75X-CC | 696.98 | 5.36 |
| N | LO Reticulofenestra umbilica | 31.2 | 1168A-78X-1, 38 | 733.60 | 0.19 |
| N | LO Isthmolithus recurvus | 32.3 | 1168A-78X-2, 144 | 735.74 | 0.73 |
| F | LO Globigerinatheka index | 34.3 | 1168A-78X-CC | 738.30 | 4.89 |
| N | LO Discoaster saipanensis | 34.2 | 1168A-80-2, 21 | 753.44 | 0.91 |
| N | FO Isthmolithus recurvus | 36.0 | 1168A-94X-CC | 878.07 | 0.07 |
Notes: Lowest sample of event interval is listed. See individual microfossil sections in this chapter for top and bottom samples of event intervals. Depth interval is the distance in meters between the top and bottom sample of the event interval. Group: N = nannofossil, F = planktonic foraminifer, R = radiolarian, D = diatom, C = dinocyst. FO = first occurrence, LO = last occurrence. This table is also available in ASCII format.