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Table T4. Age estimates of radiolarian datum events. (See table note.)

Species event Age
(Ma) 		Zone/
Subzone
base 		Reference
T Stylatractus universus 0.44 RN16 Lourens et al., 2004
B Collosphaera tuberosa 0.59 RN15 Lourens et al., 2004
T Lamprocyrtis neoheteroporos 1.08   Lourens et al., 2004
T Anthocyrtidium angulare 1.21 RN14 Lourens et al., 2004
B Lamprocyrtis nigriniae 1.31   Lourens et al., 2004
T Theocorythium vetulum 1.33   Lourens et al., 2004
T Lamprocyrtis heteroporos 1.76   Lourens et al., 2004
B Theocorythium trachelium 1.76   Lourens et al., 2004
Pliocene/Pleistocene boundary 1.81   Lourens et al., 2004
B Pterocorys minythorax 1.88   Lourens et al., 2004
B Anthocyrtidium angulare 1.97   Lourens et al., 2004
T Pterocanium prismatium 2.08 RN13 Lourens et al., 2004
T Didymocyrtis avita 2.60   Lourens et al., 2004
T Anthocyrtidium jenghisi 2.79 RN12b Lourens et al., 2004
B Cycladophora davisiana 2.89   Lourens et al., 2004
T Stichocorys peregrina 2.90 RN12a Lourens et al., 2004
B Lamprocyrtis neoheteroporos 3.03 Lourens et al., 2004
B Lamprocyrtis heteroporos 3.23   Lourens et al., 2004
T Anthocyrtidium pliocenica 3.83   Lourens et al., 2004
T Phormostichoartus fistula 3.96 RN11b Lourens et al., 2004
T Lychnodictyum audax 3.96   Lourens et al., 2004
T Spongaster pentas 3.98   Lourens et al., 2004
T Phormostichoartus doliolum 4.03 RN11a Lourens et al., 2004
B Amphirhopalum ypsilon 4.10   Lourens et al., 2004
T Didymocyrtis penultima 4.26 RN10 Lourens et al., 2004
B Spongaster tetras 4.26   Lourens et al., 2004
B Pterocanium prismatium 4.73   Lourens et al., 2004
B Nephrospyris renilla 5.02   Lourens et al., 2004
T Solenosphaera omnitubus 5.32   Lourens et al., 2004
Miocene/Pliocene boundary 5.33   Lourens et al., 2004
T Spongaster berminghami 5.57   Lourens et al., 2004
B Didymocyrtis penultima (multicap) 6.13   Lourens et al., 2004
B Didymocyrtis avita 6.15   Lourens et al., 2004
T Didymocyrtis antepenultima 6.17   Lourens et al., 2004
B Spongaster pentas 6.17   Lourens et al., 2004
T Stichocorys johnsoni 6.53   Lourens et al., 2004
T Calocycletta caepa 6.60   Lourens et al., 2004
B Didymocyrtis tetrathalamus 6.60   Lourens et al., 2004
T Stichocorys delmontensis 6.89   Lourens et al., 2004
T Acrobotrys tritubus 7.65   Lourens et al., 2004
Trans S. delmontensis > S. peregrina 7.75 RN9 Lourens et al., 2004
B Stichocorys peregrina 7.84   Lourens et al., 2004
T Stylosphaera sp. C 7.95   Lourens et al., 2004
B Theocorythium vetulum 7.98   Lourens et al., 2004
B Solenosphaera omnitubus 8.25   Lourens et al., 2004
B Acrobotrys tritubus 8.34   Lourens et al., 2004
T Diartus hughesi 8.39 RN8 Lourens et al., 2004
T Didymocyrtis laticonus 8.43   Lourens et al., 2004
B Didymocyrtis penultima 8.51   Lourens et al., 2004
T Botryostrobus miralestensis 8.59   Lourens et al., 2004
T Diartus petterssoni 8.63   Lourens et al., 2004
Trans D. petterssoni > D. hughesi 8.76 RN7 Lourens et al., 2004
B Spongaster berminghami 8.76   Lourens et al., 2004
B Stichocorys johnsoni 8.84   Lourens et al., 2004
T Stichocorys wolffii 8.95   Lourens et al., 2004
B Diartus hughesi 8.99   Lourens et al., 2004
B Cladococcus abietinus 9.41   Lourens et al., 2004
B Didymocyrtis antepenultima 10.01   Lourens et al., 2004
T Stauroxiphos communis 10.06   Lourens et al., 2004
T Cyrtocapsella japonica 10.31   Lourens et al., 2004
T Carpocanopsis cristata 10.88   Lourens et al., 2004
T Lithopera neotera 11.16   Lourens et al., 2004
Bc Diartus petterssoni 11.71   Lourens et al., 2004
T Cyrtocapsella cornuta 11.86   Lourens et al., 2004
Bc Cyrtocapsella japonica 11.86   Lourens et al., 2004
T Dorcadospyris alata 11.88   Lourens et al., 2004
T Cyrtocapsella tetrapera 11.91   Lourens et al., 2004
T Lithopera renzae 11.91   Lourens et al., 2004
B Diartus petterssoni 12.11 RN6 Lourens et al., 2004
B Cyrtocapsella japonica 12.41   Lourens et al., 2004
B Lithopera neotera 12.95   Lourens et al., 2004
T Calocycletta robusta 13.35   Lourens et al., 2004
T Stichocorys armata 13.50   Lourens et al., 2004
T Acrocubus octopyle 13.88   Lourens et al., 2004
T Didymocyrtis mammifera 13.88   Lourens et al., 2004
T Liriospyris parkerae 13.89   Lourens et al., 2004
Bc Calocycletta caepa 13.95   Lourens et al., 2004
T Eucyrtidium diaphanes 14.13   Lourens et al., 2004
T Didymocyrtis violina 14.20   Lourens et al., 2004
T Calocycletta costata 14.23   Lourens et al., 2004
T Calocycletta virginis 14.23   Lourens et al., 2004
T Carpocanopsis bramlettei 14.33   Lourens et al., 2004
T Didymocyrtis tubaria 14.35   Lourens et al., 2004
T Dorcadospyris dentata 14.66   Lourens et al., 2004
T Dorcadospyris forcipata 14.68   Lourens et al., 2004
Trans D. dentata > D. alata 14.78 RN5 Lourens et al., 2004
T Liriospyris stauropora 14.83   Lourens et al., 2004
B Liriospyris parkerae 15.03   Lourens et al., 2004
B Cyrtocapsella japonica 15.06   Lourens et al., 2004
B Dorcadospyris alata 15.08   Lourens et al., 2004
T Carpocanopsis cingulata 15.13   Lourens et al., 2004
T Lychnocanoma elongata 15.15   Lourens et al., 2004
T Didymocyrtis prismatica 15.26   Lourens et al., 2004
B Didymocyrtis laticonus 15.40   Lourens et al., 2004
B Acrocubus octopylus 15.75   Lourens et al., 2004
B Carpocanopsis cristata 15.80   Lourens et al., 2004
B Didymocyrtis laticonus 15.97   Lourens et al., 2004
B Lithopera renzae 16.77   Lourens et al., 2004
B Calocycletta costata 17.49 RN4 Lourens et al., 2004
B Liriospyris stauropora 17.72   Lourens et al., 2004
B Dorcadospyris dentata 17.72   Lourens et al., 2004
T Dorcadospyris scambos 18.53   Lourens et al., 2004
T Dorcadospyris ateuchus 18.55   Lourens et al., 2004
B Stichocorys wolffii 18.57 RN3 Lourens et al., 2004
B Didymocyrtis mammifera 18.58   Lourens et al., 2004
B Dorcadospyris forcipata 18.61   Lourens et al., 2004
T Dorcadospyris simplex s.s. 18.69   Lourens et al., 2004
T Dorcadospyris praeforcipata 19.77   Lourens et al., 2004
B Didymocyrtis violina 19.77   Lourens et al., 2004
B Didymocyrtis tubaria 19.99   Lourens et al., 2004
B Dorcadospyris simplex s.s. 20.34   Lourens et al., 2004
T Calocycletta serrata 20.45   Lourens et al., 2004
B Stichocorys delmontensis 20.68   Lourens et al., 2004
T Lophocyrtis pegetrum 20.89   Lourens et al., 2004
B Carpocanopsis bramlettei 21.30   Lourens et al., 2004
T Theocyrtis annosa 21.38 RN2 Lourens et al., 2004
B Calocycletta virginis 21.39   Lourens et al., 2004
B Lophocyrtis leptetrum 21.42   Lourens et al., 2004
B Didymocyrtis tubaria 21.73   Lourens et al., 2004
T Eucyrtidium mitodes 21.95   Lourens et al., 2004
B Calocycletta serrata 22.04   Lourens et al., 2004
B Cyrtocapsella cornuta 22.26   Lourens et al., 2004
B Cyrtocapsella tetrapera 22.35 RN1 Lourens et al., 2004
T Artophormis gracilis 22.62   Lourens et al., 2004
B Anthocyrtidium marieae 22.74   Lourens et al., 2004
B Didymocyrtis bassanii 22.93   Lourens et al., 2004
B Eucyrtidium diaphanes 22.95   Lourens et al., 2004
T Dorcadospyris cyclacantha 22.98   Lourens et al., 2004
T Dorcadospyris riedeli 23.01   Lourens et al., 2004
Oligocene/Miocene boundary 23.03   Lourens et al., 2004
B Dorcadospyris cyclacantha 23.29   Lourens et al., 2004
T Dorcadospyris circulus 23.30   Lourens et al., 2004
T Dorcadospyris papilio 23.31   Lourens et al., 2004
T Liriospyris longicornuta 24.12   Pälike et al., 2006
B Carpocanopsis cingulata 24.31   Pälike et al., 2006
T Acrocubus octopylus 24.38   Pälike et al., 2006
T Lychnocanoma apodora 24.50   Pälike et al., 2006
B Lychnocanoma elongata 25.05 RP22 Pälike et al., 2006
B Acrocubus octopylus 25.09   Pälike et al., 2006
B Didymocyrtis tubaria 25.27   Pälike et al., 2006
B Calocycletta robusta 25.27   Pälike et al., 2006
B Dorcadospyris praeforcipata 25.27   Pälike et al., 2006
B Liriospyris longicornuta 25.29   Pälike et al., 2006
B Dorcadospyris scambos 25.33   Pälike et al., 2006
T Theocorys puriri 25.38   Pälike et al., 2006
B Acrobotrys disolenia 25.38   Pälike et al., 2006
B Dorcadospyris papilio 25.55   Pälike et al., 2006
B Lychnocanoma apodora 25.55   Pälike et al., 2006
T Dorcadospyris circulus 26.17   Pälike et al., 2006
B Dorcadospyris riedeli 26.20   Pälike et al., 2006
T Eucyrtidium plesiodiaphanes 26.40   Pälike et al., 2006
T Lithocyclia angusta 27.69   Pälike et al., 2006
T Theocyrtis setanios 28.21   Pälike et al., 2006
T Theocyrtis perysinos 28.27   Pälike et al., 2006
T Tristylospyris triceros 28.31   Pälike et al., 2006
B Theocyrtis annosa 28.33   Pälike et al., 2006
Trans T. triceros > D. ateuchus 28.60 RP21 Pälike et al., 2006
B Eucyrtidium mitodes 29.41   Pälike et al., 2006
B Dorcadospyris ateuchus 29.50   Pälike et al., 2006
B Theocyrtis setanios 29.51   Pälike et al., 2006
T Lophocyrtis milowi 29.53   Pälike et al., 2006
B Theocyrtis perysinos 29.56   Pälike et al., 2006
B Theocorys puriri 29.62   Pälike et al., 2006
B Didymocyrtis prismatica 29.85   Pälike et al., 2006
B Dorcadospyris circulus 29.97   Pälike et al., 2006
T Lophocyrtis oberhaensliae 30.07   Pälike et al., 2006
T Theocyrtis tuberosa 30.13   Pälike et al., 2006
T Lithocyclia crux 30.13   Pälike et al., 2006
T Dorcadospyris spinosa 30.54   Pälike et al., 2006
T Dorcadospyris quadripes 30.54   Pälike et al., 2006
B Eucyrtidium plesiodiaphanes 30.57   Pälike et al., 2006
B Lophocyrtis pegetrum 30.68   Pälike et al., 2006
B Spirocyrtis subtilis 30.70   Pälike et al., 2006
T Dorcadospyris riedeli 30.73   Pälike et al., 2006
T Dorcadospyris pseudopapilio 30.84   Pälike et al., 2006
B Dorcadospyris spinosa 30.84   Pälike et al., 2006
T Centrobotrys gravida 30.89   Pälike et al., 2006
B Dorcadospyris riedeli 30.90   Pälike et al., 2006
B Centrobotrys petrushevskayae 30.91   Pälike et al., 2006
B Dorcadospyris quadripes 30.95   Pälike et al., 2006
B Lychnodictyum audax 30.96   Pälike et al., 2006
T Theocyrtis careotuberosa 30.97   Pälike et al., 2006
B Theocyrtis tuberosa 31.00   Pälike et al., 2006
B Dorcadospyris pseudopapilio 31.00   Pälike et al., 2006
B Lithocyclia crux 31.01   Pälike et al., 2006
B Centrobotrys gravida 31.01   Pälike et al., 2006
T Dictyoprora mongolfieri 33.18   Pälike et al., 2006
T Thyrsocyrtis triacantha (max) 33.34   Pälike et al., 2006
T Lithocyclia ocellus gr. 33.37   Pälike et al., 2006
B Lophocyrtis oberhaensliae 33.51   Pälike et al., 2006
T Lithocyclia aristotelis gr. 33.51   Pälike et al., 2006
T Cryptocarpium ornatum 33.62   Pälike et al., 2006
T Calocyclas hispida 33.62   Pälike et al., 2006
T Calocycletta anekathen 33.65   Pälike et al., 2006
T Lophocyrtis jacchia 33.69   Pälike et al., 2006
T Dictyoprora pirum 33.69   Pälike et al., 2006
T Dictyoprora armadillo 33.69   Pälike et al., 2006
T Lychnocanoma babylonis 33.75   Pälike et al., 2006
T Lophocyrtis hadra 33.75   Pälike et al., 2006
T Lychnocanoma amphitrite 33.75   Pälike et al., 2006
T Lophocyrtis exitelus 33.75   Pälike et al., 2006
Eocene/Oligocene boundary 33.80   Pälike et al., 2006
Trans L. aristotelis > L. angusta 33.82 RP20 Pälike et al., 2006
T Dorcadospyris copelata 33.84   Pälike et al., 2006
T Thyrsocyrtis bromia (max) 33.94   Pälike et al., 2006
T Zealithapium mitra 33.97   Pälike et al., 2006
T Artophormis barbadensis 33.97   Pälike et al., 2006
T Thyrsocyrtis lochites (max) 34.13   Pälike et al., 2006
B Lithocyclia angusta 34.13   Pälike et al., 2006
B Lophocyrtis milowi 34.13   Pälike et al., 2006
T Thyrsocyrtis tetracantha (max) 34.13   Pälike et al., 2006
B Pteropilium sp. aff. Pterocanium contiguum 34.25   Pälike et al., 2006
T Dorcadospyris ombros (upper) 34.30   Pälike et al., 2006
T Calocyclas bandyca 34.62   Pälike et al., 2006
B Lophocyrtis exitelus 34.68   Pälike et al., 2006
T Calocyclas turris 34.83   Pälike et al., 2006
T Eusyringium fistuligerum 34.94   Pälike et al., 2006
T Cryptocarpium azyx 35.07   Pälike et al., 2006
T Thyrsocyrtis bromia (continuous) 35.18   Pälike et al., 2006
T Thyrsocyrtis tetracantha (continuous) 35.30 RP19 Pälike et al., 2006
B Lophocyrtis hadra 35.34   Pälike et al., 2006
T Thyrsocyrtis lochites (continuous) 35.34   Pälike et al., 2006
T Thyrsocyrtis rhizodon 35.40   Pälike et al., 2006
T Thyrsocyrtis krooni 35.44   Pälike et al., 2006
T Thyrsocyrtis triacantha (continuous) 35.51   Pälike et al., 2006
T Artophormis dominasinensis 35.56   Pälike et al., 2006
T Lychnocanoma turgidum 35.77   Pälike et al., 2006
B Artophormis gracilis 36.14   Pälike et al., 2006
B Calocycletta anekathen 36.41   Pälike et al., 2006
B Lychnocanoma amphitrite 36.49   Pälike et al., 2006
T Theocyrtis perpumila 36.72   Pälike et al., 2006
B Calocyclas bandyca 36.74 RP18 Pälike et al., 2006
T Thyrsocyrtis orthotenes 36.89   Pälike et al., 2006
B Lophocyrtis jacchia 37.07   Pälike et al., 2006
T Podocyrtis papalis (continuous) 37.30   Pälike et al., 2006
B Cryptocarpium azyx 37.52 RP17 Pälike et al., 2006
B Thyrsocyrtis lochites 37.52   Pälike et al., 2006
B Dorcadospyris copelata 37.90   Pälike et al., 2006
T Spongatractus pachystylus 37.90   Pälike et al., 2006
T Anthocyrtoma spp. 37.92   Pälike et al., 2006
T Calocycloma ampulla 38.07   Pälike et al., 2006
B Thyrsocyrtis bromia 38.07   Pälike et al., 2006
B Thyrsocyrtis tetracantha 38.12   Pälike et al., 2006
T Zygocircus cimelium 38.21   Pälike et al., 2006
T Rhopalocanium ornatum 38.25   Pälike et al., 2006
B Theocyrtis careotuberosa 38.27   Pälike et al., 2006
B Dorcadospyris ombros (upper) 38.27   Pälike et al., 2006
B Tristylospyris triceros 38.31   Pälike et al., 2006
B Artophormis dominasinensis 38.33   Pälike et al., 2006
T Theocotyle ficus 38.45   Pälike et al., 2006
T Dorcadospyris anastasis 38.45   Pälike et al., 2006
T Dictyophimus craticula 38.51   Pälike et al., 2006
B Calocyclas turris 38.67   Pälike et al., 2006
T Podocyrtis goetheana (continuous) 38.72   Pälike et al., 2006
T Podocyrtis chalara (continuous) 38.74   Pälike et al., 2006
B Botryocella sp. gr. 38.91   Pälike et al., 2006
T Podocyrtis apeza 38.95   Pälike et al., 2006
B Thyrsocyrtis krooni 39.34   Pälike et al., 2006
B Dictyoprora pirum 39.65   Pälike et al., 2006
T Lithochytris vespertilio 39.65   Pälike et al., 2006
B Dictyoprora armadillo 39.65   Pälike et al., 2006
T Sethochytris triconiscus 39.70   Pälike et al., 2006
T Dorcadospyris ombros (lower) 39.70   Pälike et al., 2006
B Lithocyclia aristotelis gr. 39.73   Pälike et al., 2006
T Podocyrtis mitra 39.85   Pälike et al., 2006
B Dorcadospyris anastasis 39.98   Pälike et al., 2006
B Podocyrtis goetheana 40.16 RP16 Pälike et al., 2006
T Lophocyrtis biaurita 40.36   Pälike et al., 2006
Trans P. mitra > P. chalara 40.70 RP15 Pälike et al., 2006
T Podocyrtis trachodes 41.28   Cande and Kent, 1995
B Podocyrtis chalara 41.54   Cande and Kent, 1995
B Dorcadospyris ombros (lower) 41.54   Cande and Kent, 1995
B Podocyrtis apeza 41.63   Cande and Kent, 1995
B Artophormis barbadensis 41.66   Cande and Kent, 1995
T Podocyrtis ampla 41.67   Cande and Kent, 1995
B Zealithapium mitra 41.98   Cande and Kent, 1995
T Zealithapium anoectum 41.98   Cande and Kent, 1995
B Cryptocarpium ornatum 42.10   Cande and Kent, 1995
B Sethochytris triconiscus 42.40   Cande and Kent, 1995
T Eusyringium lagena 42.69   Cande and Kent, 1995
T Podocyrtis fasciolata 42.81   Cande and Kent, 1995
T Zealithapium plegmacantha 42.81   Cande and Kent, 1995
T Podocyrtis sinuosa 42.90   Cande and Kent, 1995
B Theocyrtis perpumila 42.97   Cande and Kent, 1995
T Podocyrtis helenae 43.05   Cande and Kent, 1995
B Lychnocanoma turgidum 43.05   Cande and Kent, 1995
B Podocyrtis trachodes 43.22   Cande and Kent, 1995
B Zygocircus cimelium 43.35   Cande and Kent, 1995
Trans P. sinuosa > P. mitra 43.84 RP14 Cande and Kent, 1995
B Podocyrtis fasciolata 43.87   Cande and Kent, 1995
B Podocyrtis helenae 44.15   Cande and Kent, 1995
T Podocyrtis diamesa 44.44   Cande and Kent, 1995
T Podocyrtis phyxis 44.44   Cande and Kent, 1995
T Spongatractus balbis 44.77   Cande and Kent, 1995
Trans P. phyxis > P. ampla 44.77 RP13 Cande and Kent, 1995
B Podocyrtis mitra 44.77   Cande and Kent, 1995
B Podocyrtis ampla 44.77   Cande and Kent, 1995
B Eusyringium fistuligerum 44.89   Cande and Kent, 1995
T Thyrsocyrtis tensa 45.06   Cande and Kent, 1995
T Theocotyle venezuelensis 45.16   Cande and Kent, 1995
B Zealithapium anoectum 45.32   Cande and Kent, 1995
T Theocotyle conica 45.32   Cande and Kent, 1995
T Lamptonium fab. constrictum 45.62   Cande and Kent, 1995
T Lamptonium fab. fabaeforme 45.88   Cande and Kent, 1995
T Theocotyle cryptocephala 46.01   Cande and Kent, 1995
T Periphaena tripyramis triangula 46.16   Cande and Kent, 1995
B Thyrsocyrtis orthotenes 46.16   Cande and Kent, 1995
T Thyrsocyrtis robusta 46.16   Cande and Kent, 1995
T Thyrsocyrtis hirsuta 46.19   Cande and Kent, 1995
B Podocyrtis phyxis 46.44   Cande and Kent, 1995
T Lamptonium fab. chaunothorax 46.61   Cande and Kent, 1995
T Periphaena delta 46.74   Cande and Kent, 1995
T Theocorys anaclasta 45.62   Cande and Kent, 1995
T Calocycloma castum 47.42   Cande and Kent, 1995
B Thyrsocyrtis triacantha 47.42   Cande and Kent, 1995
B Rhopalocanium ornatum 47.42   Cande and Kent, 1995
B Eusyringium lagena 47.42 RP12 Cande and Kent, 1995
T Buryella clinata 48.14   Cande and Kent, 1995
T Phormocyrtis striata striata 48.14   Cande and Kent, 1995
B Dictyoprora mongolfieri ~48.50 RP11 Cande and Kent, 1995
T Amphicraspedum murrayanum 49.74   Cande and Kent, 1995
T Dendrospyris fragoides 49.74   Cande and Kent, 1995
B Dictyophimus craticula 49.74   Cande and Kent, 1995
T Diploplegma somphum 49.74   Cande and Kent, 1995
T Giraffospyris lata 49.74   Cande and Kent, 1995
B Lamptonium fab. constrictum 49.74   Cande and Kent, 1995
T Lamptonium pennatum 49.74   Cande and Kent, 1995
T Lamptonium sanfilippoae 49.74   Cande and Kent, 1995
B Zealithapium plegmacantha 49.74   Cande and Kent, 1995
T Lithochytris archaea 49.74   Cande and Kent, 1995
B Lithochytris vespertilio 49.74   Cande and Kent, 1995
B Lithocyclia ocellus gr. 49.74   Cande and Kent, 1995
B Lophocyrtis biaurita 49.74   Cande and Kent, 1995
T Lychnocanoma auxilla 49.74   Cande and Kent, 1995
B Periphaena tripyramis triangula 49.74   Cande and Kent, 1995
T Phormocyrtis cubensis 49.74   Cande and Kent, 1995
T Phormocyrtis striata exquisita 49.74   Cande and Kent, 1995
B Podocyrtis sinuosa 49.74   Cande and Kent, 1995
B Podocyrtis diamesa 49.74   Cande and Kent, 1995
T Pterocodon tenellus 49.74   Cande and Kent, 1995
B Spongatractus pachystylus 49.74   Cande and Kent, 1995
B Theocotyle conica 49.74   Cande and Kent, 1995
B Theocotyle cryptocephala 49.74   Cande and Kent, 1995
Trans T. nigriniae > T. cyrptocephala ~49.00 RP10 Cande and Kent, 1995
T Theocotyle nigriniae 49.74   Cande and Kent, 1995
B Theocotyle venezuelensis 49.74   Cande and Kent, 1995
T Theocotylissa alpha 49.74   Cande and Kent, 1995
T Theocotylissa fimbria 49.74   Cande and Kent, 1995
B Thyrsocyrtis rhizodon 49.74   Cande and Kent, 1995
B Thyrsocyrtis robusta 49.74   Cande and Kent, 1995
B Theocorys anaclasta ~50.00 RP9 Cande and Kent, 1995
T Buryella tetradica s.s. 50.68   Cande and Kent, 1995
T Lychnocanoma pileus 50.68   Cande and Kent, 1995
B Periphaena delta 50.88   Cande and Kent, 1995
B Lamptonium sanfilippoae 51.44   Cande and Kent, 1995
B Spongatractus balbis 51.44   Cande and Kent, 1995
B Thyrsocyrtis tensa 51.86   Cande and Kent, 1995
T Pterocodon anteclinata 51.96   Cande and Kent, 1995
B Lychnocanoma babylonis 52.06   Cande and Kent, 1995
Trans P. anteclinata > B. clinata ~52.90 RP8 Cande and Kent, 1995
B Theocotylissa ficus 52.94   Cande and Kent, 1995
B Anthocyrtoma spp. 52.94   Cande and Kent, 1995
T Phormocyrtis turgida 52.94   Cande and Kent, 1995
T Pterocodon ampla 52.94   Cande and Kent, 1995
B Phormocyrtis striata striata 52.94   Cande and Kent, 1995
B Theocotylissa fimbria 52.94   Cande and Kent, 1995
B Buryella clinata 52.94   Cande and Kent, 1995

Note: B = base, Bc = bottom common, T = top, Trans = transitional forms.

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