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Table T5. Radiolarian datums, Site U1406.

Hole, core, section, interval (cm) Age Zone/
Subzone
Marker species Age
(Ma)
Depth (mbsf)
Top Bottom Top Bottom Mid-point ±
342-U1406A- 342-U1406A-                
    Miocene              
  2H-CC     T Lychnocanoma elongata 17.59   16.04 16.04  
3H-CC 4H-CC   RN3 B Dorcadospyris dentata 18.22 25.49 35.07 30.28 4.79
3H-CC 4H-CC     T Dorcadospyris ateuchus 18.64 25.49 35.07 30.28 4.79
4H-CC 5H-CC   RN2 T Theocyrtis annosa 20.05 35.07 44.43 39.75 4.68
8H-7 9H-CC     B Cyrtocapsa tetrapera 21.82 72.63 82.64 77.63 5.00
8H-7 9H-CC     T Artophormis gracilis 22.41 72.63 82.64 77.63 5.00
10H-7 11H-CC   RP22 B Lychnocanoma elongata 24.18 91.65 101.52 96.59 4.94
13H-7 14H-CC   RP21b B Lychnocanoma apadora 26.50 120.06 128.55 124.30 4.25
15H-CC 29X-3, 20–22   RP21a B Dorcadospyris ateuchus 28.64 139.68   139.68  
    Eocene              
15H-CC 29X-3, 20–22     T Theocotyle conica 45.63   245.11 245.11 0.00
29X-3, 98–100 29X-4, 16–18   RP12 B Eusyringium lagena 46.21 245.89 246.57 246.23 0.34
29X-4, 16–18 31X-1, 15–17   RP11 B Dictyoprora mongolfieri 47.98 246.57 255.96 251.27 4.70
    Paleocene              
29X-3, 98–101 31X-1, 15–17     T Amphisphaera goruna 55.50 246.57 255.96 251.27 4.70
31X-1, 15–17 31X-CC     T Lamptonium pennatum 55.90 255.96 260.44 258.20 2.24
31X-CC 32X-CC     T Bekoma campechensis 57.83 260.44 266.19 263.32 2.88
32X-CC 33X-4, 102–103     B Podocyrtis papalis 55.96 266.19 275.89 271.04 4.85
32X-CC 33X-4, 102–103   RP7 B Bekoma bidartensis 58.35 266.19 275.89 271.04 4.85
33X-4, 102–103     RP6 T Buryella pentadica 59.71 275.89      

B = base, T = top.

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