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Table T8. Distribution of calcareous nannofossils, Hole U1313D.

Core,
section
Martini (1971)
Zone (base)
Age
(Ma)
Abundance Preservation Calcidiscus leptoporus Calcidiscus macintyrei Calcidiscus tropicus Calciosolenia murrayi Ceratolithus cristatus Ceratolithus rugosus Coccolithus braarudii Coccolithus pelagicus Discoaster asymmetricus Discoaster brouweri Discoaster pentaradiatus Discoaster surculus Discoaster tamalis Discoaster triradiatus Discoaster variabilis Emiliania huxleyi Gephyrocapsa aperta Gephyrocapsa caribbeanica Gephyrocapsa oceanica Gephyrocapsa parallela Large Gephyrocapsa spp. Helicosphaera carteri Helicosphaera inversa Helicosphaera sellii Pontosphaera spp. Pseudoemiliania lacunosa Reticulofenestra asanoi Reticulofenestra productella Reticulofenestra pseudoumbilicus Reticulofenestra pseudoumbilicus (5–7 µm) Reticulofenestra spp. (<3 µm) Reticulofenestra spp. (3–5 µm) Rhabdosphaera clavigera Scyphosphaera spp. Sphenolithus abies Syracosphaera spp. Thoracosphaera spp. Umbilicosphaera rotula Umbilicosphaera sibogae Event
306-U1313D-
1H-CC NN21   V G A           C F               C C R   C   C R   F     C     A C C   * C F   F LO H. inversa; FO E huxleyi(?)
2H-CC NN20   V G C           F C               ? A R A     C R         A     A A F     C       FO H. inversa
3H-CC NN19   V G C           F F                     C F * C     F A *       A C F             LO P. lacunosa
4H-CC 0.85 V G C             F                 C   ? F   F     R C F       A A       C       LO R. asanoi; FO G. parallela
5H-CC 1.16 V G C       R                                 C     C A R       A A F             FO R. asanoi
6H-CC 1.27 V G F F         R F                 C A C     C   R C     A     A   F R   C       LO H. sellii
7H-CC   V G C F R   R   F F                 F C F     C   F C     A     A A F C   C        
8H-CC   V G–M C C         C C                   F F     C   C F C   C     A A F             FO G. oceanica, G. caribbeanica
9H-CC NN18   V G–M C F     R   F C   F   * * F     C         C   F         *   A A C             LO D. brouweri
10H-CC   V G–M C C F       F A   F                       C   C C       *   A A F     C        
11H-CC NN17   V G–M   F C       C A   R R *     R             C   C C C     * * A A     * C       LO D. pentaradiatus
12H-CC NN16   V G–M C C C       F C F C F R     R             C   F F           A A       C       LO D. surculus
13H-CC   V G C C C   R     A F C C C F                 C   F F C       F A A F F   A       LO D. tamalis
14H-CC   V G C C C         A C C F F C R R             C   C F         R A A F F   C        
15H-CC   V G C C A         A F F F R C R R             C   F F F       C A A   F   F        
16H-CC   V G F C C R R R F C C F R C F R R   F         C   F F F     * C A A F F   F R C    

Notes: Abundance: V = very abundant, A = abundant, C = common, F = few, R = rare, ? = questionable, * = reworked. Preservation: G = good, M = moderate. See “Calcareous nannofossils” in the “Site U1312–U1315 methods” chapter. FO = first occurrence, LO = last occurrence.

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