Table T14.
Biostratigraphic events identified at Site 1124, using shipboard analysis data.
Events
Group
Age
(Ma)Core,
section,
interval (cm)Depth
(mbsf)Depth
(mcd)
1
LO Globorotalia
puncticuloides
F
~0.6
1124A-1H-1, 18-20 cm
0.2
2.52
2
LO Pseudoemiliania
lacunosa
N
0.42
1124C-2X-3, 146 cm
21.06
21.06
3
LO Nitzschia reinholdii
D
0.65
1124C-2X-CC
25.18
25.18
4
LO Nitzschia barronii
D
1.25
1124C-4H-CC
46.29
44.81
5
LO Globorotalia tosaensis
F
~1
1124C-5H-5, 88-93 cm
53.1
52.6
6
FO Globorotalia crassula
F
2.6
1124C-5H-5, 88-93 cm
53.1
52.6
7
FO Globorotalia
truncatulinoides
F
~2
1124C-5H-CC
56.1
55.6
8
LO Calcidiscus macintyrei
N
1.60
1124C-6H-CC
65.18
65.5
9
FO Gephyrocapsa
caribbeanica
N
1.67
1124C-6H-CC
65.18
65.5
10
LO Discoaster brouweri
N
1.96
1124C-7H-CC
75.09
77.41
11
FO Cycladophora davisiana
R
2.61
1124C-7H-CC
75.09
77.41
12
LO Globorotalia inflata
triangula
F
~2
1124C-7H-CC
75.1
77.64
13
LO Globorotalia
crassaformis (dextral)
F
2.1
1124C-8H-3, 140-142 cm
79.2
81.5
14
FO Globorotalia
crassaformis (dextral)
F
3.0
1124C-8H-5, 10-12 cm
80.1
82.4
15
LO Discoaster
pentaradiatus
N
2.30
1124C-8H-CC
84.35
87.15
16
LO Globorotalia
crassaconica
F
3.0
1124C-9H-CC
94.1
98.4
17
LO Discoaster surculus
N
2.61
1124C-9H-CC
94.14
98.41
18
FO Pseudoemiliania
lacunosa
N
4.0
1124C-9H-CC
94.14
98.41
19
FO Globorotalia
puncticuloides
F
3.6
1124C-10H-1, 76-78 cm
94.5
98.8
20
FO Globorotalia inflata
F
3.7
1124C-10H-1, 76-78 cm
94.5
98.8
21
FO Globorotalia inflata
triangula
F
3.6
1124C-10H-1, 76-78 cm
94.5
98.8
22
LCO Globorotalia pliozea
F
3.6
1124C-10H-1, 76-78 cm
94.5
98.8
23
LO Reticulofenestra
pseudoumbilicus
N
3.82
1124C-10H-CC
102.72
106.99
24
FO Globorotalia
crassaconica
F
4.7
1124C-11H-1, 89-91 cm
104.1
110.29
25
FO Globorotalia
puncticulata
F
5.2
1124C-11H-3, 74-78 cm
106.9
113.09
26
FO Globorotalia pliozea
F
5.4
1124C-11H-CC
113.0
120.19
27
LO Globorotalia
puncticulata
F
3.7
1124C-11H-CC
113.05
120.24
28
LO Globorotalia miotumida
F
5.6
1124C-14H-2, 100-120 cm
134.2
144.39
29
FO Sphaeroidinella
paenedehiscens
F
~8
1124C-14H-CC
141.1
151.29
30
LO Minylitha convallis
N
7.73
1124C-16H-CC
159.3
171.13
31
LO Catinaster calyculus
N
9.64
1124C-19X-CC
188.17
200
32
FO Minylitha convallis
N
9.34
1124C-20H-CC
197.57
209.4
33
FO Catinaster coalitus
N
10.79
1124C-21X-CC
207.36
219.19
34
LO Globoquadrina dehiscens
F
10.1
1124C-20X-CC
207.4
219.23
35
FO Zeaglobigerina
nepenthes
F
11.8
1124C-21X-CC
207.4
219.23
36
LO Orbulina suturalis
F
~10.5
1124C-22X-CC
212.1
223.93
37
FO Sphaeroidinellopsis
disjuncta
F
18.5
1124C-22X-CC
212.1
223.93
38
LO Globorotalia
praemenardii
F
13.2
1124C-22X-5, 124-128 cm
214.6
226.43
39
LO Globorotalia amuria
F
13
1124C-22X-5, 124-128 cm
214.6
226.43
40
LO Coccolithus
miopelagicus
N
10.94
1124C-22X-CC
216.96
228.79
41
LO Calcidiscus
premacintyrei
N
12.65
1124C-23X-CC
226.59
238.42
42
FO Globorotalia
praemenardii
F
15.8
1124C-24X-CC
236.2
248.03
43
LO Sphenolithus
heteromorphus
N
13.52
1124C-25X-CC
245.88
257.71
44
LO Acme Discoaster
deflandrei
N
16.21
1124C-27X-CC
264.95
276.88
45
LO Catapsydrax dissimilis
F
16.7
1124C-28X-CC
274.6
286.43
46
FO Globigerinoides
trilobus
F
19
1124C-29X-CC
276.4
288.23
47
LO/FO Globorotalia
incognita
F
21.6-18.5
1124C-29X-CC
276.5
288.33
48
LO Rocella gelida
D
22.4
1124C-31X-CC
303.08
314.91
49
FO Cassidulina cuneata
F
~27
1124C-31X-CC
303.2
315.03
50
LO Rocella gelida var.
schraderi
D
23.7
1124C-33X-CC
322.68
334.51
51
LO Lychnocanoma conica
R
28.75-30.10
1124C-33X-CC
322.68
334.51
52
LO Sphenolithus umbrellus
N
23.6
1124C-34X-CC
332.49
344.32
53
LO Dictyococcites
bisectus
N
23.9
1124C-34X-CC
332.49
344.32
54
LO Sphenolithus delphix
N
24.3
1124C-34X-CC
332.49
344.32
55
LO Chiasmolithus altus
N
26.1
1124C-35X-CC
342.34
354.17
56
FO Rocella vigilans
D
30.24
1124C-40X-CC
390.07
402
57
LO Cibicidoides
praemundulus
F
23.8
1124C-40X-CC
390.1
401.93
58
FO Cavitatus jouseanus
D
30.62
1124C-41X-CC
399.87
411.7
59
LO Reticulofenestra
umbilicus
N
32.3
1124C-43X-2, 57 cm
411.77
423.6
60
LO Ericsonia formosa
N
32.8
1124C-43X-2, 57 cm
411.77
423.6
61
Acme Clausicoccus
subdistichus
N
33.3
1124C-43X-6, 66 cm
417.86
429.69
62
FO Isthmolithus recurvus
N
36
1124C-43X-CC
418.65
430.48
63
FO Dictyococcites bisectus
N
38
1124C-43X-CC
418.65
430.48
64
LO Subbotina
angiporoides
F
30
1124C-43X-CC
418.7
430.53
65
LCO Paragloborotalia
gemma
F
32
1124C-43X-CC
418.7
430.53
66
FO Paragloborotalia
gemma
F
35
1124C-43X-CC
418.7
430.53
67
LO Globigerinatheka
index
F
34.3
1124C-44X-1, 67-69 cm
420.0
431.83
68
LO Ponticulasphaera
semiinvoluta
F
34.8
1124C-44X-1, 67-69 cm
420.0
431.83
69
LO Nuttallides
truempyi
F
?34.3
1124C-44X-1, 67-69 cm
420.0
431.83
70
LO Acarinina primitiva
F
~36
1124C-44X-1, 67-69 cm
420.0
431.83
71
FO Ponticulosphaera
semiinvoluta
F
38.4
1124C-44X-5, 93-95 cm
426.2
438.03
72
FO Globigerinatheka
index
F
42.9
1124C-44X-6, 50-52 cm
427.3
439.13
73
LO Gavelinella
beccariiformis
F
55
1124C-44X-CC
429.1
440.93
74
LO Hornibrookina
teuriensis
N
58.3
1124C-45X-1, 29 cm
429.28
441.11
75
FO Fasciculithus
tympaniformis
N
59.7
1124C-45X-CC
438.62
450.45
76
FO Chiasmolithus bidens
N
60.7
1124C-45X-CC
438.62
450.45
77
LO Aragonia
ouezzanensis
F
55
1124C-45X-CC
438.7
450.53
78
FO Morozovella
conicotruncata
F
60.9
1124C-45X-CC
438.7
450.53
79
FO Morozovella
angulata
F
61
1124C-45X-CC
438.7
450.53
80
FO Morozovella
praecursoria
F
~61.2
1124C-45X-CC
438.7
450.53
81
FO Morozovella aff.
trinidadensis
F
? ~63.0
1124C-45X-CC
438.7
450.53
82
FO Sphenolithus primus
N
60.6
1124C-46X-CC
445.83
457.66
83
FO Cruciplacolithus
tenuis
N
64.5
1124C-47X-CC
457.46
469.29
84
FO Globanomalina
compressa
F
~63.5
1124C-47X-CC
457.6
469.43
85
LO Globoconusa
daubjergensis
F
~63
1124C-47X-CC
457.6
469.43
86
LO Globigerina fringa
F
63
1124C-47X-CC
457.6
469.43
87
FO Hornibrookina
teuriensis
N
64.9
1124C-48X-CC
463.32
475.15
88
LO Globigerina eugubina
F
64.9
1124C-48X-CC
463.4
475.23
89
LO Micula spp.
N
65
1124C-49X-1, 21 cm
467.61
479.44
90
LO Rugoglobigerina
rugosa
F
65
1124C-49X-CC
473.1
484.93
91
LO Globorotalites
michelinianus
F
65
1124C-49X-CC
473.1
484.93
Note: Most samples are from core catchers.