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Table T3. Age estimates of radiolarian datum events, Expedition 342.

Zone/
Subzone
base
Species event GTS2012
age (Ma)
Calibration
reference
Expedition 320
age (Ma)
Calibration
reference
GTS2004
age (Ma)
Calibration
reference
Cande and
Kent (1995)
age (Ma)
Calibration
reference
Datum
reference
RN17 B Buccinosphaera invaginata 0.18 Gradstein et al., 2012 0.18   Lourens et al., 2004 0.18 Gradstein et al., 2004 0.18 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN16 T Stylatractus universus 0.44 Gradstein et al., 2012 0.44 Lourens et al., 2004 0.44 Gradstein et al., 2004 0.42 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN15 B Collosphaera tuberosa 0.59 Gradstein et al., 2012 0.59 Lourens et al., 2004 0.59 Gradstein et al., 2004 0.61 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN14 T Anthocyrtidium angulare 1.21 Gradstein et al., 2012 1.21 Lourens et al., 2004 1.21 Gradstein et al., 2004 1.12 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN13 T Pterocanium prismatium 2.04 Gradstein et al., 2012 2.08 Lourens et al., 2004 2.08 Gradstein et al., 2004 1.74 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  Pliocene/Pleistocene
boundary
2.59 Gradstein et al., 2012 2.59 Lourens et al., 2004 1.81 Gradstein et al., 2004 1.81 Berggren et al., 1995  
  T Anthocyrtidium jenghisi 2.74 Gradstein et al., 2012 2.79 Lourens et al., 2004 2.79 Gradstein et al., 2004 2.40 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN12 T Stichocorys peregrina 2.87 Gradstein et al., 2012 2.90 Lourens et al., 2004 2.90 Gradstein et al., 2004 2.74 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Phormostichoartus fistula 3.49 Gradstein et al., 2012 3.96 Lourens et al., 2004 3.96 Gradstein et al., 2004 3.42 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN11 T Phormostichoartus doliolum 3.89 Gradstein et al., 2012 4.03 Lourens et al., 2004 4.03 Gradstein et al., 2004 3.87 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN10 T Didymocyrtis penultima 4.24 Gradstein et al., 2012 4.26 Lourens et al., 2004 4.26 Gradstein et al., 2004 4.19 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  Miocene/Pliocene boundary 5.33 Gradstein et al., 2012 5.33 Lourens et al., 2004 5.33 Gradstein et al., 2004 5.32 Berggren et al., 1995  
RN09 X Stichocorys delmontensis/
Stichocorys peregrina
7.78 Gradstein et al., 2012 7.75 Lourens et al., 2004 7.75 Gradstein et al., 2004 6.71 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN08 T Diartus hughesi 8.39 Gradstein et al., 2012 8.39 Lourens et al., 2004 8.39 Gradstein et al., 2004 7.70 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RN07 X Diartus petterssoni/
Diartus hughesi
8.84 Gradstein et al., 2012 8.76 Lourens et al., 2004 8.76 Gradstein et al., 2004 8.77 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  X Didymocyrtis antepenultima/
Didymocyrtis laticonus
8.84 Gradstein et al., 2012             Gradstein et al., 2012
  T Stichocorys wolffii 8.87 Gradstein et al., 2012             Lazarus et al., 1995
  B Phormostichoartus doliolum 8.87 Gradstein et al., 2012             Lazarus et al., 1995
  T Cyrtocapsella japonica 9.86 Gradstein et al., 2012             Lazarus et al., 1995
  T Carpocanopsis cristata 10.68 Gradstein et al., 2012             Lazarus et al., 1995
  T Cyrtocapsella cornuta 12.19 Gradstein et al., 2012             Lazarus et al., 1995
  T Cyrtocapsella tetrapera 12.19 Gradstein et al., 2012             Lazarus et al., 1995
  T Dorcadospyris alata 12.50 Gradstein et al., 2012         11.84 Nigrini et al., 2006 Nigrini et al., 2006
RN06 B Diartus petterssoni 12.60 Gradstein et al., 2012 12.11 Lourens et al., 2004 12.11 Gradstein et al., 2004 12.43 Nigrini et al., 2006 Nigrini et al., 2006
  T Calocycletta virginis 13.67 Gradstein et al., 2012         12.59   Sanfilippo and Nigrini, 1998
  T Acrocubus octopylus 15.00 Provisional         13.32 Nigrini et al., 2006 Nigrini et al., 2006
  T Calocycletta costata 15.00 Gradstein et al., 2012         13.32 Nigrini et al., 2006 Nigrini et al., 2006
  T Eucyrtidium diaphanes 15.46 Gradstein et al., 2012         14.27 Nigrini et al., 2006 Nigrini et al., 2006
  T Dorcadospyris dentata 15.66 Gradstein et al., 2012         14.51 Nigrini et al., 2006 Nigrini et al., 2006
  T Didymocyrtis tubaria/
Didymocyrtis violina
15.00 Gradstein et al., 2012         14.69 Nigrini et al., 2006 Nigrini et al., 2006
  T Dorcadospyris forcipata 15.03 Gradstein et al., 2012         14.84 Nigrini et al., 2006 Nigrini et al., 2006
RN05 X Dorcadospyris dentata/
Dorcadospyris alata
15.03 Gradstein et al., 2012 14.78 Lourens et al., 2004 14.78 Gradstein et al., 2004 15.03 Nigrini et al., 2006 Nigrini et al., 2006
  B Liriospyris parkerae 15.50 Provisional         15.16 Nigrini et al., 2006 Nigrini et al., 2006
  B Cyrtocapsella japonica 13.67 Gradstein et al., 2012         15.40 Nigrini et al., 2006 Nigrini et al., 2006
  B Dorcadospyris alata 15.50 Provisional         15.47 Nigrini et al., 2006 Nigrini et al., 2006
  T Carpocanopsis cingulata 17.16 Gradstein et al., 2012         15.77 Nigrini et al., 2006 Nigrini et al., 2006
  T Lychnocanoma elongata 17.59 Gradstein et al., 2013         15.93 Nigrini et al., 2006 Nigrini et al., 2006
  T Didymocyrtis prismatica 16.73 Gradstein et al., 2012         15.96 Nigrini et al., 2006 Nigrini et al., 2006
  B Didymocyrtis laticonus 14.07 Gradstein et al., 2012         16.06 Nigrini et al., 2006 Nigrini et al., 2006
  B Acrocubus octopylus (upper) 16.50 Provisional         16.15 Nigrini et al., 2006 Nigrini et al., 2006
  B Carpocanopsis cristata 17.16 Gradstein et al., 2012         16.22 Nigrini et al., 2006 Nigrini et al., 2006
  B Lithopera renzae 17.40 Provisional         17.30 Nigrini et al., 2006 Nigrini et al., 2006
RN04 B Calocycletta costata 17.59 Gradstein et al., 2012 17.49 Lourens et al., 2004 17.49 Gradstein et al., 2004 17.69 Nigrini et al., 2006 Nigrini et al., 2006
  B Dorcadospyris dentata 18.22 Gradstein et al., 2012         17.84 Nigrini et al., 2006 Nigrini et al., 2006
  B Liriospyris stauropora 18.43 Gradstein et al., 2012         17.84 Nigrini et al., 2006 Nigrini et al., 2006
  T Dorcadospyris scambos 18.50 Provisional         18.64 Nigrini et al., 2006 Nigrini et al., 2006
  B Siphostichartus corona 18.64 Gradstein et al., 2012             Nigrini et al., 2006
  T Dorcadospyris ateuchus 18.64 Gradstein et al., 2012         18.80 Nigrini et al., 2006 Nigrini et al., 2006
RN03 B Stichocorys wolffii 18.64 Gradstein et al., 2012 18.57 Lourens et al., 2004 18.57 Gradstein et al., 2004 18.90 Nigrini et al., 2006 Nigrini et al., 2006
  B Didymocyrtis mammifera 19.00 Provisional         18.92 Nigrini et al., 2006 Nigrini et al., 2006
  B Dorcadospyris forcipata 19.00 Provisional         19.07 Nigrini et al., 2006 Nigrini et al., 2006
  T Dorcadospyris simplex 19.00 Provisional         19.22 Nigrini et al., 2006 Nigrini et al., 2006
  B Didymocyrtis violina 19.34 Gradstein et al., 2012         19.98 Nigrini et al., 2006 Nigrini et al., 2006
  T Dorcadospyris praeforcipata 19.34 Provisional         19.98 Nigrini et al., 2006 Nigrini et al., 2006
  B Didymocyrtis tubaria 19.34 Gradstein et al., 2012         20.15 Nigrini et al., 2006 Nigrini et al., 2006
  B Dorcadospyris simplex s.s. 19.34 Provisional         20.52 Nigrini et al., 2006 Nigrini et al., 2006
  B Lophocyrtis pegetrum 19.34 Provisional         21.14 Nigrini et al., 2006 Nigrini et al., 2006
  B Stichocorys delmontensis 19.34 Gradstein et al., 2012 20.60 Lourens et al., 2004 ?   21.14 Nigrini et al., 2006 Nigrini et al., 2006
  B Carpocanopsis bramlettei 19.34 Gradstein et al., 2012         21.54 Nigrini et al., 2006 Nigrini et al., 2006
RN02 T Theocyrtis annosa 20.05 Gradstein et al., 2012 21.30 Kamikuri et al., 2012 21.38 Gradstein et al., 2004 21.57 Nigrini et al., 2006 Kamikuri et al., 2012
  T Calocycletta serrata 20.40 Gradstein et al., 2012             Sanfilippo and Nigrini, 1998
  T Calocycletta robusta 20.76 Gradstein et al., 2012             Sanfilippo and Nigrini, 1998
  B Carpocanopsis favosa 21.11 Gradstein et al., 2012             Sanfilippo and Nigrini, 1998
  B Cyrtocapsella cornuta 21.46 Gradstein et al., 2012 22.40 Kamikuri et al., 2012     22.57 Nigrini et al., 2006 Kamikuri et al., 2012
  B Botryostrobus miralestensis 21.82 Gradstein et al., 2012             Sanfilippo and Nigrini, 1998
  B Calocycletta virginis 21.82 Gradstein et al., 2012         21.60 Nigrini et al., 2006 Sanfilippo and Nigrini, 1998
  B Lophocyrtis leptetrum 21.82 Provisional 21.80 Kamikuri et al., 2012     21.73 Nigrini et al., 2006 Kamikuri et al., 2012
  T Eucyrtidium mitodes 21.82 Provisional 22.20 Kamikuri et al., 2012     22.32 Nigrini et al., 2006 Kamikuri et al., 2012
  B Calocycletta serrata 21.82 Gradstein et al., 2012 21.30 Kamikuri et al., 2012 ?   22.37 Nigrini et al., 2006 Kamikuri et al., 2012
RN01 B Cyrtocapsella tetrapera 21.82 Gradstein et al., 2012 22.40 Kamikuri et al., 2012 22.35 Gradstein et al., 2004 22.65 Nigrini et al., 2006 Kamikuri et al., 2012
  T Artophormis gracilis 22.41 Gradstein et al., 2012 22.80 Kamikuri et al., 2012 22.62 Gradstein et al., 2004 22.70 Nigrini et al., 2006 Kamikuri et al., 2012
RP22b B Eucyrtidium diaphanes 23.00 Gradstein et al., 2012 23.80 Kamikuri et al., 2012 22.95 Gradstein et al., 2004 22.91 Nigrini et al., 2006 Kamikuri et al., 2012
  B Didymocyrtis bassani 23.00 Provisional         23.05 Nigrini et al., 2006 Nigrini et al., 2006
  T Dorcadospyris riedeli 23.00 Provisional         23.18 Nigrini et al., 2006 Nigrini et al., 2006
  Oligocene/Miocene boundary 23.03 Gradstein et al., 2012 23.03 Lourens et al., 2004 23.03 Gradstein et al., 2004 23.80 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Dorcadospyris cyclacantha 23.20 Provisional 23.20 Kamikuri et al., 2012     23.15 Nigrini et al., 2006 Kamikuri et al., 2012
  B Dorcadospyris cyclacantha 23.20 Provisional 23.80 Kamikuri et al., 2012     23.42 Nigrini et al., 2006 Kamikuri et al., 2012
  T Dorcadospyris papilio 23.59 Gradstein et al., 2012 23.31 Pälike et al., 2006 23.64 Gradstein et al., 2004 23.59 Nigrini et al., 2006 Nigrini et al., 2006
  T Liriospyris longicornuta 23.80 Provisional 23.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Lychnocanoma apodora 23.80 Provisional 24.70 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Carpocanopsis cingulata 24.18 Gradstein et al., 2012 25.20 Pälike et al., 2006 23.90 Gradstein et al., 2004 24.63 Nigrini et al., 2006 Nigrini et al., 2006
RP22a B Lychnocanoma elongata 24.18 Gradstein et al., 2012 25.20 Kamikuri et al., 2012 23.90 Gradstein et al., 2004 24.89 Nigrini et al., 2006 Kamikuri et al., 2012
  T Lychnocanoma trifolium 25.07 Gradstein et al., 2012 ?   24.88 Gradstein et al., 2004 ? Nigrini et al., 2006 Nigrini et al., 2006
  B Liriospyris longicornuta     25.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Dorcadospyris papilio 26.86 Gradstein et al., 2012 25.55 Pälike et al., 2006 26.83 Gradstein et al., 2004 26.07 Nigrini et al., 2006 Nigrini et al., 2006
  B Calocycletta robusta 25.97 Gradstein et al., 2012 26.10 Kamikuri et al., 2012 25.85 Gradstein et al., 2004 25.49 Nigrini et al., 2006 Kamikuri et al., 2012
  B Acrocubus octopylus (lower) 26.20 Provisional 26.30 Kamikuri et al., 2012         Kamikuri et al., 2012
RP21b B Lychnocanoma apodora 26.50 Provisional 26.60 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Eucyrtidium plesiodiaphanes 27.30 Provisional 27.30 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Lithocyclia angusta 27.75 Gradstein et al., 2012 27.70 Kamikuri et al., 2012 27.80 Gradstein et al., 2004 28.02 Nigrini et al., 2006 Kamikuri et al., 2012
  T Theocyrtis setanios 28.15 Provisional 28.10 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Theocyrtis annosa 29.10 Gradstein et al., 2012 29.00 Kamikuri et al., 2012 29.16 Gradstein et al., 2004     Kamikuri et al., 2012
RP21a X Tristylospyris triceros/
Dorcadospyris ateuchus
28.64 Gradstein et al., 2012 29.10 Pälike et al., 2006 28.77 Gradstein et al., 2004 29.14 Nigrini et al., 2006 Nigrini et al., 2006
  T Lithocyclia crux 29.56 Gradstein et al., 2012 30.13 Pälike et al., 2006 29.54 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Eucyrtidium mitodes 30.00 Provisional 30.30 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Lychnocanoma trifolium 30.02 Gradstein et al., 2012 ?   29.93 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Dorcadospyris pseudopapilio 30.48 Gradstein et al., 2012 30.84 Pälike et al., 2006 30.31 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Didymocyrtis prismatica 30.48 Gradstein et al., 2012 29.85↑ Pälike et al., 2006 30.31 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Centrobotrys
petrushevskayae
30.94 Gradstein et al., 2012 ?   30.70 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Centrobotrys thermophila 30.94 Gradstein et al., 2012 ?   30.70 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lychnodictyum audax 31.40 Gradstein et al., 2012 30.96 Pälike et al., 2006 31.08 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Centrobotrys petrushevskayae 31.86 Gradstein et al., 2012 30.91 Pälike et al., 2006 31.47 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Centrobotrys gravida 31.86 Gradstein et al., 2012 30.91 Pälike et al., 2006 31.47 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Dorcadospyris
pseudopapilio
31.86 Gradstein et al., 2012 31.00 Pälike et al., 2006 31.47 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Theocyrtis setanios 31.10 Provisional 31.00 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Dorcadospyris spinosa 31.10 Provisional 31.00 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Dorcadospyris circulus 31.10 Provisional 31.10 Kamikuri et al., 2012         Kamikuri et al., 2012
RP20c B Eucyrtidium plesiodiaphanes 31.30 Provisional 31.20 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Theocyrtis tuberosa 31.30 Provisional 31.20 Kamikuri et al., 2012 ? Gradstein et al., 2004     Kamikuri et al., 2012
  B Artophormis gracilis 32.32 Gradstein et al., 2012 ?   31.85 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Artophormis barbadensis 32.32 Gradstein et al., 2012 ?   31.85 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lithocyclia crux 32.32 Gradstein et al., 2012 31.01 Pälike et al., 2006 31.85 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Dorcadospyris spinosa 32.78 Provisional 32.40 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Centrobotrys gravida 32.78 Gradstein et al., 2012 32.40 Kamikuri et al., 2012 32.24 Gradstein et al., 2004     Kamikuri et al., 2012
  B Centrobotrys gravida 32.80 Provisional 33.00 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Dorcadospyris pseudopapilio 32.80 Provisional 33.00 Kamikuri et al., 2012         Kamikuri et al., 2012
RP20b B Theocyrtis tuberosa 32.80 Provisional 33.00↑ Kamikuri et al., 2012         Kamikuri et al., 2012
  T Dictyoprora pirum 33.24 Gradstein et al., 2012 ?   32.62 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Phormostichoartus fistula 33.24 Gradstein et al., 2012 ?   32.62 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lophocyrtis oberhaensliae 33.89 Provisional 33.80 Kamikuri et al., 2012         Kamikuri et al., 2012
RP20a X Lithocyclia aristotelis gr./
Lithocyclia angusta
33.89 Gradstein et al., 2012 33.80 Kamikuri et al., 2012 33.01 Gradstein et al., 2004 32.80 Berggren et al., 1995 Kamikuri et al., 2012
  Eocene/Oligocene boundary 33.89 Gradstein et al., 2012 33.80 Pälike et al., 2006 33.90 Gradstein et al., 2004 33.70 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Calocycletta anekathen 33.89 Provisional 33.80 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Cryptocarpium ornatum 33.89 Gradstein et al., 2012 33.80 Kamikuri et al., 2012 33.01 Gradstein et al., 2004 32.80 Berggren et al., 1995 Kamikuri et al., 2012
  T Dictyoprora mongolferi 33.89 Gradstein et al., 2012 33.80 Kamikuri et al., 2012 33.01 Gradstein et al., 2004 32.80 Berggren et al., 1995 Kamikuri et al., 2012
  T Lychnocanoma amphitrite 33.89 Gradstein et al., 2012 33.80 Kamikuri et al., 2012 33.01 Gradstein et al., 2004 32.80 Berggren et al., 1995 Kamikuri et al., 2012
  T Dictyoprora armadillo 34.13 Gradstein et al., 2012 ?   33.51 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Lophocyrtis jacchia 34.55 Gradstein et al., 2012 ?   34.01 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lithocyclia angusta 34.90 Provisional 34.80 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Calocyclas turris 34.97 Gradstein et al., 2012 34.83 Pälike et al., 2006 34.50 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lophocyrtis milowi 34.97 Provisional 34.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Thyrsocyrtis bromia 34.97 Gradstein et al., 2012 35.18 Pälike et al., 2006 34.50 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Eusyringium fistuligerum 36.39 Gradstein et al., 2012 35.20 Kamikuri et al., 2012 35.80 Gradstein et al., 2004     Kamikuri et al., 2012
  T Calocyclas bandyca 35.40 Gradstein et al., 2012 35.20 Kamikuri et al., 2012 35.00 Gradstein et al., 2004 34.90 Berggren et al., 1995 Kamikuri et al., 2012
  T Cryptocarpium azyx 34.97 Gradstein et al., 2012 35.30 Kamikuri et al., 2012 34.50 Gradstein et al., 2004     Kamikuri et al., 2012
  T Calocyclas hispida 35.40 Gradstein et al., 2012 35.30 Pälike et al., 2006 35.00 Gradstein et al., 2004 34.90 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Lychnocanoma bellum 35.40 Gradstein et al., 2012 35.30 Pälike et al., 2006 35.00 Gradstein et al., 2004 34.90 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Podocyrtis papalis 35.40 Gradstein et al., 2012 35.30 Pälike et al., 2006 35.00 Gradstein et al., 2004 34.90 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Thyrsocyrtis rhizodon 34.97 Gradstein et al., 2012 35.4↓ Pälike et al., 2006 34.50 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
RP19 B Lophocyrtis hadra 35.40 Gradstein et al., 2012 35.40 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Thyrsocyrtis tetracantha* 35.40 Gradstein et al., 2012 35.40 Kamikuri et al., 2012 35.00 Gradstein et al., 2004 34.90 Berggren et al., 1995 Kamikuri et al., 2012
  T Thyrsocyrtis lochites* 35.40 Gradstein et al., 2012 35.40 Kamikuri et al., 2012 35.00 Gradstein et al., 2004 34.90 Berggren et al., 1995 Kamikuri et al., 2012
  T Thyrsocyrtis triacantha 35.73 Gradstein et al., 2012 35.51 Pälike et al., 2006 35.27 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Podocyrtis goetheana 36.72 Gradstein et al., 2012 ? Pälike et al., 2006 36.06 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lophocyrtis jacchia 37.00 Provisional 36.80 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Calocycletta anekathen 37.05 Gradstein et al., 2012 36.90 Kamikuri et al., 2012         Kamikuri et al., 2012
RP18 B Calocyclas bandyca 37.05 Gradstein et al., 2012 36.90 Kamikuri et al., 2012 36.32 Gradstein et al., 2004 36.40 Berggren et al., 1995 Kamikuri et al., 2012
  T Podocyrtis chalara 37.22 Gradstein et al., 2012 ? Pälike et al., 2006 36.60 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Calocyclas turris 37.58 Gradstein et al., 2012 ? Pälike et al., 2006 37.15 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Calocyclas hispida 37.58 Gradstein et al., 2012 ? Pälike et al., 2006 37.58 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lychnocanoma amphitrite 37.40 Gradstein et al., 2012 36.60 Kamikuri et al., 2012 36.87 Gradstein et al., 2004     Kamikuri et al., 2012
  T Spongatractus pachystylus 37.75 Provisional 37.90 Pälike et al., 2006 37.58 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
RP17 B Cryptocarpium azyx 37.75 Gradstein et al., 2012 38.00 Kamikuri et al., 2012 37.43 Gradstein et al., 2004 37.70 Berggren et al., 1995 Kamikuri et al., 2012
  T Calocycloma ampulla 38.00 Provisional 38.20 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Anthocyrtoma spp. 38.20 Provisional 38.40 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Thyrsocyrtis bromia 38.55 Gradstein et al., 2012 38.50 Kamikuri et al., 2012 37.73 Gradstein et al., 2004     Kamikuri et al., 2012
  T Theocotylissa ficus 38.95 Gradstein et al., 2012 ? Pälike et al., 2006 37.88 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Dorcadospyris anastasis 38.95 Provisional 38.50 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Thyrsocyrtis tetracantha 38.95 Gradstein et al., 2012 38.50 Kamikuri et al., 2012 37.88 Gradstein et al., 2004     Kamikuri et al., 2012
  B Lithocyclia aristotelis gr. 38.95 Provisional 39.30 Kamikuri et al., 2012 38.19 Gradstein et al., 2004 38.80 Berggren et al., 1995 Kamikuri et al., 2012
  T Lithochytris vespertilio 38.95 Provisional 39.60 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Dictyoprora pirum 38.95 Gradstein et al., 2012 39.65 Pälike et al., 2006 37.88 Gradstein et al., 2004     Kamikuri et al., 2012
  B Dictyoprora armadillo 39.75 Gradstein et al., 2012 39.65↑ Pälike et al., 2006 38.19 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Dorcadospyris anastasis 40.14 Provisional 39.90 Kamikuri et al., 2012         Kamikuri et al., 2012
RP16 B Podocyrtis goetheana 40.14 Gradstein et al., 2012 39.90 Kamikuri et al., 2012 38.34 Gradstein et al., 2004 38.80 Berggren et al., 1995 Kamikuri et al., 2012
  T Sethochytris triconiscus 40.50 Gradstein et al., 2012 40.10 Kamikuri et al., 2012 38.04 Gradstein et al., 2004     Kamikuri et al., 2012
  T Lophocyrtis biaurita 40.50 Provisional 40.80 Kamikuri et al., 2012         Kamikuri et al., 2012
RP15 X Podocyrtis mitra/
Podocyrtis chalara
40.65 Gradstein et al., 2012 41.40 Kamikuri et al., 2012 38.93 Gradstein et al., 2004 39.50 Berggren et al., 1995 Kamikuri et al., 2012
  T Podocyrtis trachodes 40.65 Gradstein et al., 2012 41.50 Kamikuri et al., 2012 38.64 Gradstein et al., 2004     Kamikuri et al., 2012
  T Phormocyrtis striata striata 40.65 Gradstein et al., 2012 47.9↓ Kamikuri et al., 2012 38.93 Gradstein et al., 2004 39.50 Berggren et al., 1995 Kamikuri et al., 2012
  B Tristylospyris triceros 40.65 Gradstein et al., 2012 40.70 Berggren et al., 1995 38.93 Gradstein et al., 2004 39.50 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Cryptocarpium ornatum 41.33 Gradstein et al., 2012 41.80 Kamikuri et al., 2012 39.66 Gradstein et al., 2004     Kamikuri et al., 2012
  T Podocyrtis ampla 42.01 Gradstein et al., 2012 41.67↑ Berggren et al., 1995 40.39 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Zealithapium mitra 42.30 Provisional 41.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Zealithapium anoectum 42.50 Provisional 42.10 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Sethochytris triconiscus 42.69 Gradstein et al., 2012 42.20 Kamikuri et al., 2012 41.11 Gradstein et al., 2004     Kamikuri et al., 2012
  T Eusyringium lagena 42.69 Gradstein et al., 2012 42.30 Kamikuri et al., 2012 41.11 Gradstein et al., 2004     Kamikuri et al., 2012
  T Podocyrtis fasciolata 42.69 Gradstein et al., 2012 ?   41.11 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Podocyrtis helenae 42.69 Gradstein et al., 2012 44.15 Berggren et al., 1995 41.11 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Thyrsocyrtis lochites 42.69 Gradstein et al., 2012 ?   41.11 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Artophormis barbadensis 42.69 Gradstein et al., 2012 ?   41.11 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Podocyrtis helenae 43.38 Provisional 43.70 Kamikuri et al., 2012 43.18 Gradstein et al., 2004     Kamikuri et al., 2012
RP14 X Podocyrtis sinuosa/
Podocyrtis mitra
43.38 Gradstein et al., 2012 43.70 Berggren et al., 1995 41.84 Gradstein et al., 2004 42.80 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Calocyclas trichopa 43.38 Provisional 43.70 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Podocyrtis fasciolata 43.50 Provisional 43.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Podocyrtis trachodes 43.59 Gradstein et al., 2012 43.22↑ Berggren et al., 1995 42.17 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Podocyrtis dorus 43.81 Gradstein et al., 2012 ?   42.51 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  X Eusyringium lagena/
Eusyringium fistuligerum
44.03 Gradstein et al., 2012 ?   42.85 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Podocyrtis fasciolata 44.25 Gradstein et al., 2012 43.87 Berggren et al., 1995 43.18 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Eusyringium fistuligerum 44.46 Sanfilippo and Blome, 2001 44.30 Kamikuri et al., 2012 44.60 Gradstein et al., 2004     Kamikuri et al., 2012
  B Calocyclas trichopa 44.46 Provisional 44.40 Kamikuri et al., 2012         Kamikuri et al., 2012
RP13 X Podocyrtis phyxis/
Podocyrtis ampla
44.46 Gradstein et al., 2012 44.60 Kamikuri et al., 2012 43.52 Gradstein et al., 2004 44.50 Berggren et al., 1995 Kamikuri et al., 2012
  T Theocorys plesioanaclasta 44.46 Provisional 44.70 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Theocotyle venezuelensis 44.46 Gradstein et al., 2012 44.77 Berggren et al., 1995 43.52 Gradstein et al., 2004 44.50 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Podocyrtis diamesa 45.63 Gradstein et al., 2012 44.44↑ Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Theocotyle nigriniae 45.63 Gradstein et al., 2012 ?   45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Periphaena tripyramis
triangula
45.63 Provisional 45.30 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Theocotyle conica 45.63 Gradstein et al., 2012 45.32 Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Lamptonium fabaeforme
constrictum
45.63 Gradstein et al., 2012 45.62 Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Thyrsocyrtis robusta 45.63 Gradstein et al., 2012 46.16 Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Thyrsocyrtis hirsuta 45.63 Gradstein et al., 2012 46.19 Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Podocyrtis phyxis 45.63 Gradstein et al., 2012 46.44 Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Lamptonium fabaeforme
chaunothorax
45.63 Gradstein et al., 2012 46.61 Berggren et al., 1995 45.68 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Calocycloma ampulla 46.21 Provisional 45.70 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Lychnocanoma bajunensis 46.21 Provisional 45.70 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Rhopalocanium ornatum 46.21 Provisional 45.70 Kamikuri et al., 2012         Kamikuri et al., 2012
  X Thyrsocyrtis tensa/
Thyrsocyrtis triacantha
46.21 Gradstein et al., 2012 45.70 Berggren et al., 1995 46.76 Gradstein et al., 2004 47.50 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RP12 B Eusyringium lagena 46.21 Gradstein et al., 2012 45.70 Kamikuri et al., 2012 46.76 Gradstein et al., 2004 47.50 Berggren et al., 1995 Kamikuri et al., 2012
  T Calocycloma castum 46.21 Provisional 45.70 Kamikuri et al., 2012 47.94 Gradstein et al., 2004 48.50 Berggren et al., 1995 Kamikuri et al., 2012
  T Lamptonium fabaeforme
fabaeforme
46.80 Gradstein et al., 2012 45.88↑ Berggren et al., 1995 47.16 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Theocorys anaclasta 49.00 Provisional 46.40 Kamikuri et al., 2012 45.68 Gradstein et al., 2004     Kamikuri et al., 2012
  B Theocorys anaclasta 50.05 Gradstein et al., 2012 47.40 Kamikuri et al., 2012 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Kamikuri et al., 2012
  B Podocyrtis dorus 46.80 Gradstein et al., 2012 ?   47.16 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  X Theocotyle cryptocephala/
Theocotyle conica
47.39 Gradstein et al., 2012 49.74↓ Berggren et al., 1995 47.55 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Zealithapium plegmacantha 47.90 Provisional 47.80 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Buryella clinata 47.90 Provisional 47.80 Berggren et al., 1995 48.60 Gradstein et al., 2004 49.00 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RP11 B Dictyoprora mongolfieri 47.98 Gradstein et al., 2012 47.90 Kamikuri et al., 2012 47.94 Gradstein et al., 2004 48.50 Berggren et al., 1995 Kamikuri et al., 2012
  T Lithochytris archaea 47.98 Provisional 47.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  T Podocyrtis acalles 48.13 Gradstein et al., 2012 ?   48.11 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Podocyrtis sinuosa 48.13 Gradstein et al., 2012 ?   48.11 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Thyrsocyrtis robusta 48.27 Gradstein et al., 2012 ?   48.27 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Theocotyle venezuelensis 48.42 Gradstein et al., 2012 ?   48.44 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lithochytris vespertilio 48.57 Gradstein et al., 2012 49.00 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Lithocyclia ocellus gr. 48.57 Gradstein et al., 2012 49.00 Kamikuri et al., 2012         Kamikuri et al., 2012
RP10 X Theocotyle nigriniae/
heocotyle cryptocephala
48.57 Gradstein et al., 2012 49.00 Berggren et al., 1995 48.60 Gradstein et al., 2004 49.00 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  X Spongatractus balbis/
Spongatractus pachystylus
48.86 Gradstein et al., 2012 49.74* Berggren et al., 1995 48.91 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Lamptonium sanfilippoae 49.16 Gradstein et al., 2012 49.74* Berggren et al., 1995 49.22 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Thyrsocyrtis rhizodon 49.46 Gradstein et al., 2012 49.74* Berggren et al., 1995 49.53 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Podocyrtis diamesa 49.75 Gradstein et al., 2012 49.74* Berggren et al., 1995 49.83 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Dictyophimus craticula 50.05 Provisional 49.90 Kamikuri et al., 2012         Kamikuri et al., 2012
  B Periphaena tripyramis
triangula
50.05 Provisional 49.90 Kamikuri et al., 2012         Kamikuri et al., 2012
RP9 B Theocorys plesioanaclasta 50.05 Gradstein et al., 2012 49.90 Berggren et al., 1995 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Kamikuri et al., 2012
  B Podocyrtis acalles 50.05 Gradstein et al., 2012 50* Berggren et al., 1995 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Lychnocanoma bellum 50.05 Gradstein et al., 2012 50* Berggren et al., 1995 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Lamptonium fabaeforme
constrictum
50.05 Gradstein et al., 2012 50* Berggren et al., 1995 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  X Phormocyrtis striata
exquisita/P. striata striata
50.05 Gradstein et al., 2012 50* Berggren et al., 1995 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Phormocyrtis cubensis 50.05 Gradstein et al., 2012 50* Berggren et al., 1995 50.14 Gradstein et al., 2004 50.30 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  T Phormocyrts turgida 50.87 Sanfilippo and Blome, 2001             Sanfilippo and Nigrini, 1998
  T Bekoma bidartensis 50.87 Gradstein et al., 2012     50.91 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Buryella tetradica 50.87 Gradstein et al., 2012     50.91 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Pterocodon(?) ampla 50.87 Gradstein et al., 2012     50.91 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Thyrsocyrtis tarsipes 50.87 Gradstein et al., 2012     50.91 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Theocotylissa alpha (RP9?) 51.70 Gradstein et al., 2012     51.69 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Thyrsocyrtis tensa 51.70 Gradstein et al., 2012     51.69 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Theocotylissa ficus 51.70 Gradstein et al., 2012     51.69 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Calocyclas hispida 52.52 Gradstein et al., 2012     52.46 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
RP8 X Pterocodon(?) anteclinata/
Buryella clinata
53.35 Gradstein et al., 2012 52.9* Berggren et al., 1995 53.23 Gradstein et al., 2004 52.85 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Spongatractus balbis 53.35 Gradstein et al., 2012 52.9* Berggren et al., 1995 53.23 Gradstein et al., 2004 52.85 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Lamptonium sanfilippoae 53.35 Gradstein et al., 2012 52.9* Berggren et al., 1995 53.23 Gradstein et al., 2004 52.85 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Theocotyle nigriniae 53.35 Gradstein et al., 2012 52.9* Berggren et al., 1995 53.23 Gradstein et al., 2004 52.85 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Thyrsocyrtis hirsuta 53.35 Gradstein et al., 2012 52.9* Berggren et al., 1995 53.23 Gradstein et al., 2004 52.85 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Theocotylissa alpha 54.04 Gradstein et al., 2012     53.87 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Lamptonium fabaeforme
chaunothorax
54.74 Gradstein et al., 2012     54.51 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Calocycloma castum 55.40 Sanfilippo and Blome, 2001     55.79 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  B Lophocyrtis jacchia 55.44 Gradstein et al., 2012     55.15 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Pterocodon(?) anteclinata 55.44 Sanfilippo and Blome, 2001     55.15 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  T Stylosphaera goruna 55.50 Sanfilippo and Blome, 2001     55.20 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  X Lamptonium pennatum/
Lamptonium fabaeforme
fabaeforme
(ET)
55.90 Sanfilippo and Blome, 2001     55.79 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  B Theocorys phyzella 55.90 Sanfilippo and Blome, 2001     55.79 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  B Phormocyrtis turgida 55.96 Sanfilippo and Blome, 2001     55.80 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  Paleocene/Eocene boundary 55.96 Gradstein et al., 2012 55.00 Berggren et al., 1995 55.80 Gradstein et al., 2004 55.50 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Lamptonium fabaeforme
fabaeforme
56.14 Gradstein et al., 2013     56.00 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  B Amphicraspedum prolixum 56.14 Sanfilippo and Blome, 2001     56.00 Sanfilippo and Blome, 2001     Sanfilippo and Nigrini, 1998
  T Bekoma campechensis 57.53 Gradstein et al., 2012     57.07 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
RP7 X Bekoma campechensis/
Bekoma bidartensis
58.23 Gradstein et al., 2012     57.71 Gradstein et al., 2004     Nishimura, 1992
  B Podocyrtis papalis
(early form)
58.50 Provisional     56.43 Sanfilippo and Blome, 2001     Nishimura, 1992
  B Phormocyrtis cubensis 58.61 Gradstein et al., 2012     58.07 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
RP6c B Stylotrochus nitidus or
Pterocodon? poculum
59.00 Gradstein et al., 2012     58.43 Gradstein et al., 2004     Sanfilippo and Nigrini, 1998
  T Buryella pentadica 59.71 Gradstein et al., 2012     59.21 Gradstein et al., 2004 56.90 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RP6b T Peritiviator? dumitricai 60.40 Gradstein et al., 2012     59.99 Gradstein et al., 2004 57.80 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  B Pterocodon(?) ampla 60.97 Gradstein et al., 2012     60.47 Gradstein et al., 2004 59.20 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RP6a B Bekoma campechensis 61.50 Gradstein et al., 2012     60.95 Gradstein et al., 2004 60.20 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RP5 B Buryella tetradica 62.20 Gradstein et al., 2012     61.65 Gradstein et al., 2004 60.90 Berggren et al., 1995 Hollis, 2002
  B Amphisphaera coronata 63.00 Hollis, 2002     62.50 Hollis, 2002 61.90 Hollis, 2002 Hollis, 2002
RP4 B Buryella foremanae 63.90 Gradstein et al., 2012     63.38 Gradstein et al., 2004 62.80 Berggren et al., 1995 Hollis, 2002
RP3 B Buryella granulata 64.90 Gradstein et al., 2012     64.37 Gradstein et al., 2004 63.90 Berggren et al., 1995 Hollis, 1997
RP2 B Amphisphaera kina 65.55 Gradstein et al., 2012     64.99 Gradstein et al., 2004 64.60 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
RP1 B Amphisphaera aotea 66.04 Gradstein et al., 2012     65.50 Gradstein et al., 2004 65.00 Berggren et al., 1995 Sanfilippo and Nigrini, 1998
  Cretaceous/Paleogene
boundary
66.04 Gradstein et al., 2012   Berggren et al., 1995 65.50 Gradstein et al., 2004 65.00 Berggren et al., 1995 Berggren et al., 1995
  B Orbiculiforma renillaeformis 72.00 Gradstein et al., 2012       Gradstein et al., 2004     Pessagno, 1976
  Campanian/Maastrichtian
boundary
72.05 Gradstein et al., 2012       Gradstein et al., 2004      
RK9 B Amphipyndax tylotus 75.00 Gradstein et al., 2012       Gradstein et al., 2004     Sanfilippo and Riedel, 1985

* = event poorly constrained near base of hole. GTS2012 = geomagnetic timescale of Gradstein et al. (2012), GTS2004 = geomagnetic timescale of Gradstein et al. (2004). B = bottom, T = top, X = faunal crossover (>50% descendent). Provisional ages based on Kamikuri et al. (2012). ↑ = recorded earlier than indicated by Gradstein et al. (2012). ↓ = recorded later than indicated by Gradstein et al. (2012).

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