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Table T20. Calcareous nannofossils in core samples, Hole C0002J.

Age
(Ma) 		Core, section,
interval (cm) 		Average depth (mbsf) Abundance Preservation Amaurolithus spp. Calcidiscus leptoporus Calcidiscus macintyrei Ceratolithus cristatus Coccolithus pelagicus Discoaster asymmetricus Discoaster brouweri Discoaster pentaradiatus Discoaster surculus Discoaster tamalis Discoaster triradiatus Discoaster variabilis Florisphaera profunda Gephyrocapsa spp. small (<4 µm) Helicosphaera carteri Helicosphaera sellii Helicosphaera wallichii Pontosphaera japonica Pontosphaera spp. Pseudoemiliania lacunosa Reticulofenestra pseudoumbilicus Reticulofenestra spp. Rhadosphaera clavigera Sphenolithus abies Syracosphaera pulchra Umbilicosphaera rotula
  338-C0002J-                                                          
2.87−3.65 1R-CC, 0.0−5.0 906.085 V M   + +   + + + + + +     + + +         +   +        
3.65−3.79 2R-CC, 5.5−10.5 907.85 V M re + +   + + + + + +     +   + + + + + +   + +   + +
3R-CC, 10.5−15.5 916.28 V M   + + +   + + + +   +   + + + +       +   +   +    
>3.79 4R-CC, 7.5−12.5 921.78 V G   + + +     + + +     + + + +   +   + + + +   +   +
5R-7, 111.0−116.0 925.481 A M   + +   +   + + +     +   + +   +       + +   +   +
        5R-8, 103.5−108.5 926.7045 B                                                      
5R-CC, 2.0−6.0 927.003 B                                                      
6R-CC, 12.5−17.5 928.12 B                                                      
7R-CC, 19.5−24.5 933.73 R P                                         +          

Abundance: V = very abundant, A = abundant, R = rare, B = barren. Preservation: G = good, M = moderate, P = poor, + = present, re = reworked.

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