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Table T2. Calcareous nannofossil datums used during Leg 181.
 
Age
(Ma)
Nannofossil events References

0.085

Bottom acme Emiliania huxleyi

Berggren et al. (1995a)

0.16

LO Helicosphaera inversa

Sato and Kameo (1996)

0.24

FO Emiliania huxleyi

Naish et al. (1998)

0.42

LO Pseudoemiliania lacunosa

Sato and Kameo (1996)

0.78

Top acme Gephyrocapsa parallela

Matsuoka and Okada (1989)

0.85

LO Reticulofenestra asanoi

Sato and Kameo (1996)

0.90

Top dominance Gephyrocapsa (small)

Young et al. (1994)

0.95

FO Gephyrocapsa parallela

Sato and Kameo (1996)

1.14

Bottom dominance Gephyrocapsa (small)

Young et al. (1994)

1.16

FO Reticulofenestra asanoi

Sato and Kameo (1996)

1.20

LO Gephyrocapsa (large)

Sato and Kameo (1996)

1.26

LO Helicosphaera sellii

Sato and Kameo (1996)

1.44

FO Gephyrocapsa (large)

Sato and Kameo (1996)

1.60

LO Calcidiscus macintyrei

Raffi et al. (1993)

1.67

FO Gephyrocapsa (medium)

Raffi and Flores (1995)

1.96

LO Discoaster brouweri

Raffi and Flores (1995)

2.30

LO Discoaster pentaradiatus

Wei (1993)

2.61

LO Discoaster surculus

Raffi and Flores (1995)

2.76

LO Discoaster tamalis

Raffi and Flores (1995)

3.54

LO Sphenolithus neoabies

Spencer-Cervato et al. (1994)

3.82

LO Reticulofenestra pseudoumbilicus

Raffi and Flores (1995)

~3.88

Acme Gephyrocapsa (small)

Rio (1992)

4.0

FO Pseudoemiliania lacunosa

Gartner (1990)

4.13

FO Discoaster asymmetricus

Shackleton et al. (1995)

5.56

LO Discoaster quinqueramus

Raffi and Flores (1995)

7.39

FO Amaurolithus primus

Backman and Raffi (1997)

7.73

LO Minylitha convallis

Shackleton et al. (1995)

9.34

FO Minylitha convallis

Raffi and Flores (1995)

9.64

LO Cantinaster calyculus

Backman and Raffi (1997)

10.5

FO Discoaster bellus

Gartner (1992)

10.79

FO Cantinaster coalitus

Backman and Raffi (1997)

10.94

LO Coccolithus miopelagicus

Backman and Raffi (1997)

12.34

FO Calcidiscus macintyrei

Raffi and Flores (1995)

12.65

LO Calcidiscus premacintyrei

Raffi and Flores (1995)

13.19

LO Cyclicargolithus floridanus

Raffi and Flores (1995)

13.52

LO Sphenolithus heteromorphus

Backman and Raffi (1997)

16.21

LO acme Discoaster deflandrei

Raffi and Flores (1995)

17.40

FO Calcidiscus premacintyrei

Backman and Raffi (1997)

17.80

LO Sphenolithus dissimilis

Gartner (1992)

18.20

FO Calcidiscus leptoporus

Gartner (1992)

18.30

LO Sphenolithus belemnos

Berggren et al. (1995b)

18.60

FO Sphenolithus heteromorphus

Backman et al. (1990)

19.20

FO Sphenolithus belemnos

Berggren et al. (1995b)

19.80

FO Geminilithella rotula

Young et al. (1994)

22.30

LO Ilselithina fusa

Gartner (1992)

23.20

FO Discoaster druggii

Berggren et al. (1995b)

23.6

LO Sphenolithus umbrellus

Berggren et al. (1995b)

23.9

LO Dictyococcites bisectus

Berggren et al. (1995b)

24.3

LO Sphenolithus delphix

Berggren et al. (1995b)

26.1

LO Chiasmolithus altus

Berggren et al. (1995b)

27.5

FO Sphenolithus distentus

Berggren et al. (1995b)

31.3

LO Reticulofenestra umbilicus

Morgans et al. (1996)

32.8

LO Ericsonia formosa

Berggren et al. (1995b)

33.30

Acme Clausicoccus subdistichus

Berggren et al. (1995b)

~34.6

LO Discoaster saipanensis

Berggren et al. (1995b)

35.5

FO Isthmolithus recurvus

Morgans et al. (1996)

38.0

FO Dictyococcites bisectus

Berggren et al. (1995b)

58.3

LO Hornibrookina teuriensis

Berggren et al. (1995b)

59.7

FO Fasciculites tympaniformis

Morgans et al. (1996)

60.6

FO Sphenolithus primus

Berggren et al. (1995b)

60.7

FO Chiasmolithus bidens

Berggren et al. (1995b)

64.5

FO Cruciplacolithus tenuis

Berggren et al. (1995b)

64.9

FO Hornibrookina teuriensis

Berggren et al. (1995b)

65.0

LO Micula spp.

Berggren et al. (1995b)

Note: This table is also available in ASCII format.

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