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Table T7. Calcareous nannofossil datums, ages, and depths, Site 1256.

Datum
Zone (base)
Core, section, interval (cm)
Depth (mbsf)
Age
Top
Bottom
Top
Bottom
Mean
(Ma)


206-1256B-
206-1256B-





FO Emiliania huxleyi
NN21
1H-2, 67
1H-4, 60

2.17
5.10
3.64
0.26
LO Pseudoemiliania lacunosa
NN20
1H-CC
2H-2, 113

5.77
8.70
7.24
0.46
LO Discoaster brouweri
NN19
2H-CC
3H-4, 40-42

15.75
20.50
18.13
1.95
LO Discoaster pentaradiatus
NN18
3H-5, 83
3H-CC

22.43
25.22
23.83
2.52
LO Discoaster surculus
NN17
3H-CC
4H-2, 40–42

25.22
27.00
26.11
2.53
LO Sphenolithus abies/neoabies

4H-2, 40–42
4H-4, 40–42

27.00
30.00
28.50
3.66
LO Reticulofenestra pseudoumbilicus
NN16
4H-4, 40–42
4H-6, 40–42

30.00
33.00
31.50
3.82
FO Ceratolithus rugosus
NN13
5H-2, 40–42
5H-3, 40–42

36.50
38.00
37.25
5.1
LO Discoaster quinqueramus
NN12
5H-5, 40–42
5H-6, 93–100

41.00
43.03
42.02
5.6
FO Discoaster berggrenii
NN11
9H-2, 80
9H-CC

74.90
82.24
78.57
8.6
LO Discoaster hamatus
NN10
9H-CC
10H-4, 100

82.24
87.60
84.92
9.4
FO Discoaster hamatus
NN9
11H-CC
12H-4, 60

101.28
106.20
103.74
10.38
FO Catinaster coalitus
NN8
12H-4, 60
12H-5, 52

106.20
107.62
106.91
10.9
FO Discoaster kugleri
NN7
16H-CC
17H-3, 112

148.59
152.72
150.66
11.8
LO Cyclicargolithus floridanus

23X-3, 97
23X-CC

197.67
202.53
200.10
13.2
LO Sphenolithus heteromorphus
NN6
24X-CC
25X-2, 90

209.88
215.40
212.64
13.6

Note: FO = first occurrence, LO = last occurrence.

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