Table T2. Identification and abundance of nannofossils observed at Site 1121.
Core, section, interval (cm)
Depth (mbsf)
Preservation
Group abundance
Bicolumnus ovatus
Bomolithus elegans
Calcidiscus leptoporus
Chiasmolithus bidens
Chiasmolithus danicus
Chiasmolithus spp.
Coccolithus pelagicus
Cruciplacolithus tenuis
Cyclicargolithus abisectus
Dictyococcites antarcticus
Dictyococcites bisectus
Dictyococcites productus
Ellipsolithus macellus
Fasciculithus billii
Fasciculithus bobii
Fasciculithus janii
Fasciculithus tympaniformis
Fasciculithus ulii
Fasciculithus spp.
Gephyrocapsa parallela
Gephyrocapsa (small)
Heliolithus cantabriae
Heliolithus kleinpellii
Heliolithus redelii
Hornibrookina australis
Markalius astroporus
Neochiastozygus concinnus
Neochiastozygus perfectus
Neochiastozygus spp.
Prinsius bisulcus
Reticulofenestra spp.
Reticulofenestra (small)
Sphenolithus primus
Toweius eminens
Toweius pertusus
Toweius selandianus
Toweius spp.
Transversopontis sigmoidalis
Comments
181-1121A-
1H-1, 0-2
0.02
B
Barren
1H-1, 4-6
0.05
G
B
T
T
T
T
T
T
< 0.8 Ma
1H-CC, 22-27
8.32
G
R
T
T
> 1.8 Ma
181-1121B-
1H-CC, 11-22
9.81
G
R
F
C
C
> 1.8 Ma
2H-CC, 12-17
19.38
P
R
T
> 1.8 Ma
3H-CC, 10-15
28.78
B
> 1.8 Ma
4X-CC, 23-28
23.23
R
T
T
T
> 1.8 Ma
5X-CC, 22-27
23.72
B
> 1.8 Ma
6X-1, 2-2
32.72
M
A
R
R
C
A
F
F
C
C
R
A
C
C
A
NP8
6X-1, 107-107
33.77
M
A
R
F
A
A
C
F
R
D
C
C
NP8
6X-1, 135-135
34.05
M
C
C
A
F
F
C
C
R
C
C
C
C
A
NP8
6X-2, 10-10
34.30
M
F
F
A
R
R
T
NP8
6X-CC, 17-27
37.18
M
R
R
R
NP8
7X-CC, 13-23
50.55
M
C
C
F
C
A
NP7-6
8X-3, 16-16
53.71
M
F
R
R
A
NP7-6
8X-CC, 11-21
60.96
M
F
C
C
R
?
R
F
D
NP7-6
9X-CC, 15-25
71.18
M
C
C
F
F
R
C
C
F
C
F
C
C
C
NP7-6
10X-CC, 0-10
76.98
M
C
C
F
C
C
C
F
F
C
C
C
C
C
R
NP7-6
11X-CC, 0-10
87.12
M
C
R
C
F
F
F
F
C
F
C
F
C
C
C
NP5
12X-CC, 5-10
94.26
M
F
C
C
C
F
F
C
D
F
C
C
NP5
13X-CC, 34-39
100.44
M
F
C
C
F
R
C
A
C
C
C
C
NP5
14X-CC, 51-56
110.21
M
F
R
C
C
F
R
R
R
C
C
D
F
C
C
C
C
NP5
15X-CC, 44-49
122.30
M
A
C
C
C
R
F
R
R
C
C
D
C
C
C
C
NP4
16X-CC, 0-10
127.20
M
A
C
C
C
F
C
C
A
C
C
C
C
NP4
17X-CC, 25-30
134.42
M
F
C
C
R
R
R
R
C
C
A
C
C
C
NP4
Note: Preservation: G = good, M = moderate, and P = poor; total (group) and relative abundance of calcareous nannofossils: D = dominant, A = abundant, C = common, F = few, R = rare, T= trace, and B = barren.