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Table T4. Microfossil bioevents, Site U1422.

Core, section, interval (cm) Event
type		 Bioevents and epoch boundaries Age
(Ma)		 Depth CSF-A (m) Depth CCSF-A (m) Comments
Top Bottom Top Bottom Midpoint ± Top Bottom Midpoint ±
346-U1422C- 346-U1422C-                        
1H-CC 2H-CC R LO Amphimelissa setosa 0.08 4.59 14.28 9.44 4.85 4.35 14.73 9.54 5.19  
2H-CC 3H-CC R LO Spongodiscus sp. 0.29 14.28 23.99 19.14 4.86 14.73 25.01 19.87 5.14  
3H-5W, 15–16 4H-1W, 59–60 CN FO Emiliania huxleyi 0.29 20.25 24.19 22.22 1.97 21.27 26.17 23.72 2.45 Barren in between
4H-CC 5H-CC D LO Proboscia curvirostris 0.31 33.40 42.47 37.94 4.54 35.38 45.30 40.34 4.96  
8H-CC 10H-CC R LO Axoprunum acquilonium 1.2−1.7 71.38 87.77 79.58 8.20 76.42 95.79 86.11 9.68 Barren in between
11H-CC 12H-CC D LO Neodenticula koizumii 2.00 97.00 106.80 101.90 4.90 105.48 115.79 110.63 5.16  
13H-CC 14H-CC R LO Cycladophora sakaii 2.30 116.18 125.70 120.94 4.76 125.17 135.78 130.48 5.31  
16H-CC 17H-CC D FO Neodenticula seminae 2.40 135.07 139.77 137.42 2.35 145.75 151.03 148.39 2.64  
Pliocene⁄Pleistocene boundary     2.59                  
18H-CC 19H-CC R FO Cycladophora davisiana 2.70 144.41 149.19 146.80 2.39 155.91 160.69 158.30 2.39  
19H-CC 20H-CC D LO Neodenticula kamtschatica 2.6–2.7 149.19 153.82 151.51 2.32 160.69 165.32 163.00 2.32  
19H-CC 20H-CC R LO Hexacontium parviakitaensis 2.70 149.19 153.82 151.51 2.32 160.69 165.32 163.00 2.32  
25H-CC 26H-CC D FO Neodenticula koizumii 3.40−3.93 177.33 181.97 179.65 2.32 188.83 193.47 191.15 2.32  

R = radiolarian, CN = calcareous nannofossil, D = diatom, LO = last occurrence, FO = first occurrence.

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