Table T4. Calcareous nannofossil, planktonic and benthic foraminifer, and diatom biostratigraphic events, Holes U1313A, U1313B, U1313C, and U1313D.
Species event | Age (Ma) |
Depth (mbsf) | |||
---|---|---|---|---|---|
Hole U1313A |
Hole U1313B |
Hole U1313C |
Hole U1313D |
||
LO Helicosphaera inversa | 0.16 | 7.45 | 7.45 | 4.75 | |
FO Emiliania huxleyi | 0.25 | 18.45 | 17.32 | 16.95 | 14.25 |
LO Pseudoemiliania lacunosa | 0.41 | 18.45 | 17.32 | 16.95 | 23.75 |
LO Fragilariopsis reinholdii | 0.50 | 28.95 | 29.65 | 33.25 | |
FO Helicosphaera inversa | 0.51 | 18.45 | 22.07 | 16.95 | 23.75 |
LO Reticulofenestra asanoi | 0.85 | 22.45 | 26.91 | 26.45 | 33.25 |
FO Gephyrocapsa parallela | 0.95 | 38.45 | 41.49 | 45.45 | 42.75 |
LO Stilostomella lepidula | 1.00 | 38.45 | 45.45 | ||
FO Reticulofenestra asanoi | 1.16 | 47.235 | 46.65 | 45.45 | 52.25 |
LO large Gephyrocapsa spp. | 1.21 | 47.235 | 51.4 | 45.45 | |
LO Helicosphaera sellii | 1.27 | 57.45 | 55.95 | 54.95 | 52.25 |
FO large Gephyrocapsa spp. | 1.45 | 66.95 | 63.2 | 73.95 | |
FO Gephyrocapsa caribbeanica | 1.73 | 76.45 | 75.465 | 83.45 | 80.75 |
FaO Neogloboquadrina pachyderma (s) | 1.78 | 76.45 | |||
LO Discoaster brouweri | 1.97 | 85.95 | 79.8 | 83.45 | 80.75 |
FO Globorotalia truncatulinoides | 2.08 | 73.95 | 90.25 | ||
FO Globorotalia inflata | 2.09 | 95.45 | 96.15 | 83.45 | 99.75 |
LO Discoaster pentaradiatus | 2.38 | 95.45 | 101.3 | 102.45 | 99.75 |
LO Globorotalia miocenica | 2.40 | 95.45 | 115.15 | 109.25 | |
LO Globorotalia puncticulata | 2.41 | 104.95 | 105.65 | 92.95 | 109.25 |
LO Discoaster surculus | 2.54 | 104.95 | 106.05 | 102.45 | 109.25 |
LO Discoaster tamalis | 2.74 | 114.45 | 115.15 | 102.45 | 118.75 |
Disappearance Globorotalia hirsuta | 3.18 | 133.45 | 134.15 | 140.45 | 137.75 |
LO Sphaeroidinellopsis seminulina | 3.19 | 133.45 | 134.15 | 130.95 | |
Reappearance Globorotalia puncticulata | 3.31 | 142.95 | 134.15 | 140.45 | |
Disappearance Globorotalia puncticulata | 3.57 | 152.45 | 143.65 | 149.95 | |
LO Globorotalia margaritae | 3.81 | 161.95 | 162.65 | 168.95 | |
LO Reticulofenestra pseudoumbilicus | 3.85 | 152.45 | 153.15 | 159.45 | |
LcO Globorotalia margaritae | 3.98 | 171.45 | 162.65 | 178.45 | |
FO Globorotalia puncticulata | 4.52 | 190.45 | 193.15 | 197.45 | |
FO Globorotalia crassaformis | 4.52 | 190.45 | 193.15 | ||
LO Globigerina nepenthes | 4.89 | 199.95 | 202.65 | 206.95 | |
FO Ceratolithus cristatus (rugosus) | 5.089 | 218.95 | 206.95 | ||
LO Discoaster quinqueramus | 5.537 | 228.45 | 231.15 | 225.95 | |
LO Amaurolithus amplificus | 5.999 | 294.95 | 290.15 |
Notes: Dark blue = nannofossils, pink = foraminifers, light blue = diatoms. For first occurrences (FO) and first abundant occurrences (FaO), depth is plotted as the midpoint between the depth at which the species was first observed and the depth of the sample below. For last occurrences (LO) and last common occurrences (LcO), depth is plotted as the midpoint between the depth at which the species was last observed and the depth of the sample above. s = sinistral.
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