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Table T7. Distribution of calcareous nannofossils, Hole U1303A.

Core, section Age
(Ma)
Abundance Preservation Calcidiscus leptoporus Coccolithus pelagicus Coccolithus streckerii Cyclolithella annula Discolithina japonica Discolithina spp. Discosphaera tubifera Emiliania huxleyi Gephyrocapsa oceanica Gephyrocapsa parallela Gephyrocapsa spp. (small) Helicosphaera carteri Helicosphaera hyalina Helicosphaera inversa Pseudoemiliania lacunosa Reticulofenestra asanoi Reticulofenestra spp. (small) Rhabdosphaera clavigera Rhabdosphaera stylifera Scapholithus fossilis Syracosphaera pulchra Umbilicosphaera sibogae Reworked species
Reticulofenestra gartneri Cribrocentrum reticulatum Reticulofenestra pseudoumbilicus Isthmolithus recurvus Reticulofenestra umbilicus Cretarhabdulus spp. Prediscosphaella cretacea (s.l.) Watznaueria barnesae
303-U1303A-
1H-CC 0~0.25 A G R F R R R     A F F A R         R       R R                
2H-CC 0~0.25 R M R R           F R   C R         R                         r
3H-CC 0~0.25 A M R C R R       F C C A R         R       R R                
4H-CC 0~0.25 A G R A R   R     R F R A F         R R R R R R               r
5H-CC 0.16~0.25 A M R C R       R R F R A F   R     R       R R                
6H-CC 0.41~0.85 R P + +   +       ? +   R +     R   R                     r   r
7H-CC 0.41~0.85 A G R F + +   R     R + A R     C   A +       +                
8H-CC 0.41~0.85 A G R C +     +     R + A R +   C   R         R                
9H-CC 0.41~0.85 F M   R       +     + + F R     C   R       + + r              
10H-CC 0.85~0.95 F M   +       +     R + F +     F + F           r r r r r   r r

Notes: Abundance: A = abundant, C = common, F = few, R = rare, + = present, r = reworked. Preservation: G = good, M = moderate, P = poor.

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