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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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