Table T2. Planktonic foraminifer datum events for 10–35 Ma, Expedition 313. (See table notes.)
Epoch | Zone | Planktonic foraminifer event | Age (Ma) | Reference | |
---|---|---|---|---|---|
Miocene | M13/N16 | T Neogloboquadrina nympha | 10.1 | Berggren et al., 1995 | |
B Neogloboquadrina acostaensis | 10.9 | Berggren et al., 1995 | |||
M12/N15 | T Paragloborotalia mayeri | 11.4 | Berggren et al., 1995 | ||
M11/N14 | B Globoturborotalita nepenthes | 11.8 | Berggren et al., 1995 | ||
M10/N13 | T Globorotalia praescitula | 11.9 | Berggren et al., 1995 | ||
T Fohsella fohsi spp. | 11.9 | Berggren et al., 1995 | |||
M9b | B Fohsella fohsi robusta | 12.3 | Berggren et al., 1995 | ||
M9a/N12 | B Fohsella fohsi lobata | 12.5 | Berggren et al., 1995 | ||
M8/N11 | B Fohsella fohsi fohsi | 12.7 | Berggren et al., 1995 | ||
M7/N10 | B Neogloboquadrina nympha | 13.4 | Berggren et al., 1995 | ||
T Fohsella peripheroronda | 13.8 | Shackleton et al., 1999 | |||
T Globorotalia archeomenardii | 13.9 | Shackleton et al., 1999 | |||
B Globorotalia praemenardii | 14.2 | Shackleton et al., 1999 | |||
B Fohsella peripheroacuta | 14.8 | Berggren et al., 1995 | |||
M6/N9 | T Praeorbulina sicana | 14.8 | Berggren et al., 1995 | ||
T Praeorbulina glomerosa | 14.8 | Berggren et al., 1995 | |||
B Orbulina suturalis | 15.1 | Berggren et al., 1995 | |||
M5b | T Globorotalia miozea | 15.9 | Berggren et al., 1995 | ||
B Praeorbulina circularis | 16.0 | Berggren et al., 1995 | |||
B Praeorbulina glomerosa | 16.1 | Berggren et al., 1995 | |||
M5a/N8 | B Praeorbulina curva | 16.3 | Berggren et al., 1995 | ||
B Praeorbulina sicana | 16.4 | Berggren et al., 1995 | |||
M4b | T Globorotalia incognita | 16.4 | Berggren et al., 1995 | ||
B Globorotalia miozea | 16.7 | Berggren et al., 1995 | |||
B Globorotalia birnageae | 16.7 | Berggren et al., 1995 | |||
M4a/N7 | T Catapsydrax dissimilis | 17.3 | Berggren et al., 1995 | ||
M3/N6 | T Globorotalia zealandica | 17.3 | Berggren et al., 1995 | ||
T Globorotalia semivera | 17.3 | Berggren et al., 1995 | |||
T Globoquadrina dehiscens f. spinosa | 17.9 | Berggren et al., 1995 | |||
B Globorotalia praescitula | 18.5 | Berggren et al., 1995 | |||
B Globigerinatella insueta | 18.8 | Berggren et al., 1995 | |||
M2/N5 | B Globigerinoides altiaperturus | 20.5 | Berggren et al., 1995 | ||
T Tenuitella munda | 21.5 | Berggren et al., 1995 | |||
T Paragloborotalia kugleri | 21.5 | Berggren et al., 1995 | |||
M1b | B Globorotalia incognita | 21.6 | Berggren et al., 1995 | ||
T Paragloborotalia pseudokugleri | 21.6 | Berggren et al., 1995 | |||
T Globigerina angulisuturalis | 21.6 | Berggren et al., 1995 | |||
T Globoquadrina globularis | 22.8 | Berggren et al., 1995 | |||
B Globoquadrina dehiscens | 23.2 | Berggren et al., 1995 | |||
M1a/N4 | B Paragloborotalia kugleri | 23.8 | Berggren et al., 1995 | ||
Oligocene | O6/P22 | T Turborotalia euapertura | 23.8 | Berggren et al., 1995 | |
T Tenuitella gemma | 24.3 | Berggren et al., 1995 | |||
Bc Globigerinoides primordius | 24.3 | Berggren et al., 1995 | |||
B Paragloborotalia pseudokugleri | 25.9 | Berggren et al., 1995 | |||
B Globigerinoides primordius | 26.7 | Berggren et al., 1995 | |||
T Globigerina labiacrassata | 27.1 | Berggren et al., 1995 | |||
T Paragloborotalia opima | 27.1 | Berggren et al., 1995 | |||
O5/P21b | Tc Chiloguembelina cubensis | 28.5 | Berggren et al., 1995 | ||
O4/P21a | B Globigerina angulisuturalis | 29.4 | Berggren et al., 1995 | ||
O3/P20 | T Subbotina angiporoides | 30.0 | Berggren et al., 1995 | ||
T Globigerina ampliapertura | 30.3 | Berggren et al., 1995 | |||
O2/P19 | B Paragloborotalia opima | 30.6 | Berggren et al., 1995 | ||
T Pseudohastigerina spp. | 32.0 | Berggren et al., 1995 | |||
O1 | P18 | B Cassigerinella chipolensis | 33.7 | Berggren et al., 1995 | |
T Hantkenina spp. | 33.7 | Berggren et al., 1995 | |||
Eocene | E16 | T Turborotalia cerroazulensis | 33.8 | Berggren et al., 1995 | |
P17 | T Cribrohantkenina inflata | 34.0 | Berggren et al., 1995 | ||
P16 | T Globigerapsis index | 34.3 | Berggren et al., 1995 | ||
E15 | B Turborotalia cunialensis | 35.2 | Berggren et al., 1995 | ||
P15 | T Turborotalia pomeroli | 35.3 | Berggren et al., 1995 | ||
T Globigerinatheka semiinvoluta | 35.8 | Berggren et al., 1995 |
Notes: T = top, B = base, Bc = base common, Tc = top common. Bold text = biostratigraphic marker for the base of each zone. Planktonic foraminifer M zones from Berggren et al. (1995), E and O zones from Berggren and Pearson (2005), N zones from Blow (1969), and P zones from Berggren and Miller (1988).
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