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Table T2. Distribution of calcareous nannofossils, Hole U1308A. (Continued on next page.)

Core, section
Age (Ma)
 Abundance Preservation Amaurolithus amplificus Amaurolithus delicatus Amaurolithus ninae Calcidiscus leptoporus Calcidiscus macintyrei Ceratolithus acutus Ceratolithus cristatus Ceratolithus rugosus Coccolithus streckerii Coccolithus pelagicus Cyclolithella annula Discoaster asymmetricus Discoaster berggrenii Discoaster brouweri Discoaster pentaradiatus Discoaster quinqueramus Discoaster surculus Discoaster tamalis Discoaster variabilis Discoaster spp. Discolithina japonica Discolithina spp. Emiliania huxleyi Gephyrocapsa caribbeanica Gephyrocapsa oceanica Gephyrocapsa parallela Gephyrocapsa spp. (large) Gephyrocapsa spp. (small) Helicosphaera carteri Helicosphaera hyalina
303-U1308A-
1H-CC 0~0.25 A G


F



+ F









+ R C
+ +
A R
2H-CC 0.25~0.41 A G


R




R









R +
+ R +
A R +
3H-CC 0.41~0.85 A G


R



+ F










R

R R
A R
4H-CC 0.41~0.85 A M


R




F










+

F R
C R +
5H-CC 0.41~0.85 A M


+




R










+

+ +
C +
6H-CC 0.85~0.95 A G


R
















R

R +
C R
7H-CC 0.95~1.16 A G


+
















R




F R
8H-CC 0.95~1.16 A M


F




+









R R




R R +
9H-CC 1.27~1.45 A G


R




R










R
R R
R C R
10H-CC 1.45~1.65 A M


R



+ R









+ R
R R

C R
11H-CC 1.45~1.65 A M


R



+ F










R
R F

C R
12H-CC 1.45~1.65 A M


R R















+
R +

F +
13H-CC 1.73~1.97 A M


F F
+
+ F









+ R




C R
14H-CC 1.73~1.97 A G


R R



F










R





R
15H-CC 1.97~2.38 A G


R R



R


+





+ R





R
16H-CC 1.97~2.38 A G


R R


+ F


+





+ F





+
17H-CC 1.97~2.38 A M


R R


+ F









+ F





+
18H-CC 2.38~2.54 A M


R R


+ C
+
+ +





+





+
19H-CC 2.54~2.74 A G


R R


+ F
+
+ +
+


+ R





R
20H-CC ? A M


R R


+ F +

+ +
+ ?
+
R




+ +
21H-CC 2.78~3.85 A M


R R


+ F + +
+ +
+ + + +
R





+
22H-CC 2.78~3.85 A M


R R



F + +
+ +
+ +
R
R




+ R
23H-CC 2.78~3.85 A M


R R


+ C + +
+ +

+
R
+





R
24H-CC 2.78~3.85 A M


F R


+ A + +
+ +
+ +
F + R





R
25H-CC 2.78~3.85 A M


R R


+ A + +
+ +
+ + + R
+





R
26H-CC 2.78~3.85 A M


R R


+ C +

+

+ +
R






+ R
27H-CC — — —





























28H-CC 3.85~4.50 A M


R R


+ C +


+
+ + + R
R




+ R
29H-CC 4.50~4.7 A M

+ R R + +
+ C +

+ +
+
+ F
+





R
30H-CC 4.50~4.7 A M +
+ R R + + + + C +

+ +
+
+ F







+
31H-CC 4.7~5.6 A M
+ + R R


+ C +

+ +
+
+ F









32H-CC 4.7~5.6 A M + + + R R


+ C + +
+ +
+
+ F









33H-CC 4.7~5.6 A M + +
R R



F +

+ +
+
+ R






+

34H-CC 4.7~5.6 A M + +
R R


+ C +

+ +
+
+ F +





+ +
35H-CC 5.6~6.5 A M +

F R



C +
+ + + + +
+ F







+
36H-CC 5.6~6.5 A M +

R R



F

+ + + + +
+ F







+

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

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