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Table T2. Age estimates of calcareous nannofossil datum events. (See table notes.)

Species event Age
(Ma) 		Zone/Subzone
base 		Reference
B Emiliania huxleyi 0.29 NN21 Lourens et al., 2004
T Pseudoemiliania lacunosa 0.44 NN20 Lourens et al., 2004
Tc Reticulofenestra asanoi 0.91   Lourens et al., 2004
Br Gephyrocapsa (>4 µm) 1.01   Lourens et al., 2004
Bc Reticulofenestra asanoi 1.14   Lourens et al., 2004
T Gephyrocapsa (>5.5 µm) 1.26   Lourens et al., 2004
T Helicosphaera sellii 1.34   Lourens et al., 2004
B Gephyrocapsa (>5.5 µm) 1.56   Lourens et al., 2004
T Calcidiscus macintyrei 1.61   Lourens et al., 2004
B Gephyrocapsa (>4 µm) 1.69   Lourens et al., 2004
Pliocene/Pleistocene boundary 1.806   Lourens et al., 2004
T Discoaster brouweri 1.93 NN19 Lourens et al., 2004
Bc Discoaster triradiatus 2.14   Lourens et al., 2004
T Discoaster pentaradiatus 2.39 NN18 Lourens et al., 2004
T Discoaster surculus 2.49 NN17 Lourens et al., 2004
T Discoaster tamalis 2.80   Lourens et al., 2004
T Sphenolithus spp. 3.54   Lourens et al., 2004
T Reticulofenestra pseudoumbilicus 3.70 NN16 Lourens et al., 2004
T Ceratolithus acutus 5.04   Lourens et al., 2004
B Ceratolithus rugosus 5.05 NN13 Lourens et al., 2004
T Triquetrorhabdulus rugosus 5.28   Lourens et al., 2004
Miocene/Pliocene boundary 5.332   Lourens et al., 2004
B Ceratolithus larrymayeri 5.34   Lourens et al., 2004
B Ceratolithus acutus 5.35   Lourens et al., 2004
T Discoaster quinqueramus 5.58 NN12 Lourens et al., 2004
Tc Nicklithus amplificus 5.98   Lourens et al., 2004
X Nicklithus amplificus/T. rugosus 6.79   Lourens et al., 2004
B Nicklithus amplificus 6.91   Lourens et al., 2004
B Amaurolithus spp. 7.36   Lourens et al., 2004
B Discoaster berggrenii 8.29   Lourens et al., 2004
T Catinaster calyculus 9.67   Lourens et al., 2004
T Discoaster hamatus 9.69 NN10 Lourens et al., 2004
T Catinaster coalitus 9.69   Lourens et al., 2004
B Discoaster hamatus 10.55 NN9 Lourens et al., 2004
T Coccolithus miopelagicus 10.60   Raffi et al., 2006
B Catinaster calyculus 10.76   Lourens et al., 2004
B Catinaster coalitus 10.89 NN8 Lourens et al., 2004
Tc Discoaster kugleri 11.58   Lourens et al., 2004
Bc Discoaster kugleri 11.86 NN7 Lourens et al., 2004
T Coronocyclus nitescens 12.12   Lourens et al., 2004
T Calcidiscus premacintyrei 12.45   Lourens et al., 2004
Tc Cyclicargolithus floridanus 13.33   Lourens et al., 2004
T Sphenolithus heteromorphus 13.53 NN6 Lourens et al., 2004
T Helicosphaera ampliaperta 14.91 NN5 Lourens et al., 2004
Tc Discoaster deflandrei 15.66   Raffi et al., 2006
B Discoaster petaliformis* 15.70   Raffi et al., 2006
Bc Sphenolithus heteromorphus 17.71   Lourens et al., 2004
Tc Sphenolithus belemnos 17.95 NN4 Lourens et al., 2004
T Triquetrorhabdulus carinatus 18.28 NN3 Lourens et al., 2004
B Sphenolithus belemnos 19.03   Lourens et al., 2004
B Helicosphaera ampliaperta 20.43   Lourens et al., 2004
X Helicosphaera euphratis/H. carteri 20.92   Lourens et al., 2004
Tc Triquetrorhabdulus carinatus 22.09   Raffi et al., 2006
B Sphenolithus disbelemnos 22.76   Lourens et al., 2004
Oligocene/Miocene boundary 23.03   Lourens et al., 2004
T Sphenolithus delphix 23.1   Lourens et al., 2004
B Sphenolithus delphix 23.2   Lourens et al., 2004
T Sphenolithus ciperoensis 24.4 NN1 Blaj et al., 2009
X Triquetrorhabdulus longus/T. carinatus 24.7   Blaj et al., 2009
Tc Cyclicargolithus abisectus 24.7   Lyle et al., 2002
T Sphenolithus distentus 26.8 NP25 Blaj et al., 2009
T Sphenolithus predistentus 26.9   Blaj et al., 2009
B Sphenolithus ciperoensis 27.1 NP24 Blaj et al., 2009
T Sphenolithus pseudoradians 28.8   Berggren et al., 1995
B Sphenolithus distentus 30.0   Blaj et al., 2009
T Reticulofenestra umbilicus (>14 µm) 32.0 NP23 Blaj et al., 2009
T Isthmolithus recurvus 32.5   Villa et al., 2008
T Coccolithus formosus 32.9 NP22 Blaj et al., 2009
Eocene/Oligocene boundary 33.8   Pälike et al., 2006
T Discoaster saipanensis 34.4 NP21 Blaj et al., 2009
T Discoaster barbadiensis 34.8   Blaj et al., 2009
T Reticulofenestra reticulata 35.2   Backman, 1987
B Isthmolithus recurvus 36.6 NP19 Backman, 1986
B Chiasmolithus oamaruensis 37.0 NP18 Berggren et al., 1995
T Chiasmolithus grandis 37.1   Backman, 1987
B Dictyococcites bisectus (>10 µm) 38.0   Berggren et al., 1995
T Chiasmolithus solitus 40.4 NP17 Berggren et al., 1995
B Reticulofenestra reticulata 42.0   Berggren et al., 1995
T Nannotetrina spp. 42.3   Backman, 1987
B Reticulofenestra umbilicus (>14 µm) 42.5   Backman, 1987
T Nannotetrina fulgens 43.4   Backman, 1986
T Chiasmolithus gigas 44.0 NP15c Backman, 1986
B Sphenolithus furcatolithoides 45.8   Jovane et al., 2007
B Chiasmolithus gigas 46.1 NP15b Agnini et al., 2006
B Nannotetrina fulgens 46.8 NP15a Agnini et al., 2006
B Nannotetrina cristata 48.0   Agnini et al., 2006
T Discoaster lodoensis 48.4   Agnini et al., 2006
B Discoaster sublodoensis (5 rayed) 49.5 NP14 Agnini et al., 2006
B Dictyococcites/Reticulofenestra 50.7   Agnini et al., 2006
T Tribrachiatus orthostylus 50.7 NP13 Agnini et al., 2006
B Girgisia gammation 52.8   Agnini et al., 2007
B Discoaster lodoensis 53.1 NP12 Agnini et al., 2007
T Tribrachiatus contortus 53.5 NP11 Agnini et al., 2007
B Sphenolithus radians 53.5   Agnini et al., 2007
B Tribrachiatus orthostylus 53.7   Agnini et al., 2007
B Discoaster diastypus 54.1   Agnini et al., 2007
T Fasciculithus spp. 54.7   Agnini et al., 2007
B Rhomboaster bramlettei 55.0 NP10 Agnini et al., 2007
B Rhomboaster spp. 55.0   Agnini et al., 2007
Paleocene/Eocene boundary 55.0   Berggren et al., 1995
T Ericsonia robusta 55.9   Agnini et al., 2007
B Discoaster multiradiatus 56.0 NP9 Agnini et al., 2007
B Discoaster okadai 56.2   Agnini et al., 2007
B Discoaster nobilis 56.2   Agnini et al., 2007
B Discoaster backmanii 56.9   Agnini et al., 2007
B Discoaster mohleri 57.6 NP7 Agnini et al., 2007
B Fasciculithus clinatus 57.7   Agnini et al., 2007
B Heliolithus kleinpellii 58.0 NP6 Agnini et al., 2007
B Sphenolithus anarrhopus 58.1   Agnini et al., 2007
B Heliolithus cantabriae 58.3   Agnini et al., 2007
B Fasciculithus tympaniformis 59.9 NP5 Agnini et al., 2007

Notes: B = base, T = top, Tc = top common, Bc = base common, Br = base reentrance, X = abundance crossover. * = Discoaster signus in Raffi et al., 2006.

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