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Table T5. Radiolarian datums, Site U1408.

Core, section, interval (cm) Zone Marker species Age
(Ma) 		Depth (mbsf)
Top Bottom Top Bottom Mid-point ±
342-U1408A- 342-U1408A-
16H-6W, 78–80     T Calocyclas tripocha 43.38 144.29   144.29  
16H-7-CC 17H-3W, 69–71 RP13 T Podocyrtis dorus 43.81 145.09 150.50 147.80  
17H-3W, 69–71 25X-CC   B Calocyclas tripocha 44.46 150.50 227.29 188.90 38.40
26X-1W, 54–55 26X-4W, 85–86   T Amphisphaera goruna 55.50 227.85 231.85 229.85 2.00
27X-CC   RP7 X Bekoma campechensis – Bekoma bidartensis 58.23 246.59   246.59  
                Unzoned     0.00 144.29    
RP13     144.29 150.50    
Unzoned     150.50 231.85    
RP7     231.85 246.59    

B= base, T = top, X = faunal crossover.

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