Table T4. Zonal and other key datum, Site 1209.
Event
Upper core, section, interval (cm)
Upper depth
Lower core, section, interval (cm)
Lower depth Zone Datum mean
(mcd)
(rmcd)
(mcd)
(rmcd)
OB80
M71
(mcd)
(rmcd)
LAD E. formosa 1209C-3H-2, 30–31 130.145 130.455 1209C-3H-3, 30–31 131.645 131.955
CP16c NP22
130.895 131.205
Base acme E. subdisticha 1209C-3H-6, 30–31 136.145 136.455 1209A-14H-4, 30–31 137.195 139.005
CP16b

136.670 137.730
LAD D. barbadiensis 1209C-3H-6, 30–31 136.145 136.455 1209A-14H-4, 30–31 137.195 139.005
CP16a

136.670 137.730
LAD C. grandis 1209C-3H-6, 30–31 136.145 136.455 1209A-14H-4, 30–31 137.195 139.005
CP15

136.670 137.730
FAD S. predistentus 1209A-14H-4, 30–31 137.195 139.005 1209A-14H-5, 30–31 138.695 140.445



137.945 139.725
LAD D. saipanensis 1209A-14H-5, 30–31 138.695 140.445 1209A-14H-6, 30–31 140.195 141.725

NP21
139.445 141.085
FAD S. pseudoradians 1209A-14H-5, 30–31 138.695 140.445 1209A-14H-6, 30–31 140.195 141.725

NP20
139.445 141.085
LAD C. dela 1209B-15H-1, 144–145 141.000 142.445 1209B-15H-2, 107–108 142.130 143.575



141.565 143.010
LAD C. solitus 1209B-15H-4, 110–111 145.165 146.518 1209B-15H-5, 110–111 146.665 147.803
CP14b NP17
145.915 147.161
FAD D. bisectus 1209B-15H-5, 110–111 146.665 147.803 1209B-15H-6 20–21 147.265 148.350



146.965 148.077
FAD D. scrippsae 1209B-16H-1, 0–5 147.490 151.895 1209B-16H-2, 50–51 149.490 153.875



148.490 152.885
FAD S. obtusus 1209B-16H-2, 50–51 149.495 153.875 1209B-16H-3, 50–51 150.995 155.375



150.245 154.625
LAD N. fulgens 1209B-16H-3, 50–51 150.995 155.375 1209A-16H-1, 45–46 151.220 155.855



151.108 155.615
FAD R. umbilicus 1209B-16H-3, 50–51 150.995 155.375 1209A-16H-1, 45–46 151.220 155.855
CP14a

151.108 155.615
LAD C. gigas 1209A-16H-2, 45–46 152.010 156.645 1209A-16H-3, 45–46 153.510 158.145
CP13c

152.760 157.395
FAD S. furcatolithoides 1209A-17H-1, 45–46 162.395 166.175 1209A-17H-2, 45–46 163.895 167.675



163.145 166.925
FAD C. gigas 1209A-17H-3, 45–46 165.395 169.175 1209A-17H-4, 50–51 166.945 170.725
CP13b

166.170 169.950
FAD S. spiniger 1209A-17H-6, 50–51 169.945 173.725 1209B-18H-2, 50–52 170.730 174.335



170.338 174.030
FAD N. fulgens 1209B-18H-2, 50–52 170.720 174.335 1209B-18H-3, 50–52 172.220 175.835
CP13a NP15
171.470 175.085
LAD C. crassus 1209B-18H-2, 50–52 170.720 174.335 1209B-18H-3, 50–52 172.220 175.835



171.470 175.085
LAD C. cribellum 1209A-18H-3, 82–83 175.000 180.625 1209A-18H-4, 45–46 176.130 181.755



175.565 181.190
LAD R. inflata 1209B-19H-1, 120–121 179.860 185.005 1209A-18H-6, 45–46 178.420 180.153
CP13a

179.140 182.579
FAD Nannotetrina sp. 1209B-19H-4, 100–102 184.170 189.300 1209B-19H-5, 0–2 184.670 189.810



184.420 189.555
FAD T. carinatus 1209B-19H-4, 100–102 184.170 189.300 1209B-19H-5, 0–2 184.670 189.810



184.420 189.555
LAD T. orthostylus 1209A-19H-4, 45–46 187.180 192.355 1209A-19H-5, 45–46 188.680 193.855

NP13
187.930 193.105
FAD R. dictyoda 1209A-19H-5, 45–46 188.680 193.855 1209A-19H-6, 45–46 190.180 195.355



189.430 194.605
FAD R. inflata 1209A-19H-6, 45–46 190.180 195.355 1209B-20H-2, 100–102 190.550 197.870
CP12b

190.365 196.613
LAD L. nascens 1209B-20H-2, 100–102 190.560 197.870 1209B-20H-3, 100–102 192.060 199.360



191.310 198.615
FAD C. grandis 1209B-20H-3, 100–102 192.060 199.370 1209B-20H-4, 100–102 193.560 200.870



192.810 200.120
FAD D. sublodoensis 1209B-20H-5, 100–102 195.060 202.370 1209A-20H-4, 45–46 196.300 203.315
CP12a NP14
195.680 202.843
FAD C. crassus 1209A-20H-6, 45–46 199.300 206.315 1209C-10H-1, 110–111 199.890 204.574
CP11

199.595 205.445
LAD D. multiradiatus 1209C-10H-2, 100–102 201.291 206.375 1209C-10H-3, 100–102 202.800 208.032



202.046 207.204
FAD C. cribellum 1209C-10H-4, 100–102 204.290 209.300 1209C-10H-5, 100–102 205.790 210.595



205.040 209.948
FAD Chiphragmalithus spp. 1209C-10H-5, 100–102 205.800 210.595 1209C-10H-6, 100–102 207.300 211.968



206.550 211.282
FAD D. lodoensis 1209C-10H-6, 100–102 207.290 211.969 1209C-11H-2, 0–2 208.410 215.192
CP10 NP12
207.850 213.581
FAD S. radians 1209C-10H-6, 100–102 207.290 211.969 1209C-11H-2, 0–2 208.410 215.192



207.850 213.581
FAD T. orthostylus 1209C-10H-6, 100–102 207.290 211.969 1209C-11H-2, 0–2 208.410 215.192



207.850 213.581
FAD S. editus 1209C-10H-6, 100–102 207.290 211.969 1209C-11H-2, 0–2 208.410 215.192



207.850 213.581
FAD D. barbadiensis 1209C-10H-6, 100–102 207.290 211.969 1209C-11H-2, 0–2 208.410 215.192



207.850 213.581
LAD F. tympaniformis 1209B-21H-CC, 0 208.560 215.580 1209B-22H-1, 12 210.030 216.683



209.295 216.132
FAD C. eograndis 1209B-21H-CC, 0 208.560 215.580 1209B-22H-1, 12 210.030 216.683



209.295 216.132
FAD D. diastypus 1209B-22H-1, 64 210.550 217.254 1209B-22H-1, 70 210.610 217.319
CP9

210.580 217.287
FAD Z. bijugatus 1209B-22H-1, 127 211.180 217.945 1209B-22H-1, 132 211.230 218.000



211.205 217.973
LAD C. tenuis 1209B-22H-1, 127 211.180 217.945 1209B-22H-1, 132 211.230 218.000



211.205 217.973
FAD C. eodela 1209A-22H-3, 46–47 215.860 223.105 1209A-22H-4, 46–47 217.360 224.605
CP8b

216.610 223.855
FAD D. multiradiatus 1209C-12H-2, 50–52 220.070 227.300 1209C-12H-3, 50–52 221.570 228.800
CP8a NP9
220.820 228.050
LAD H. kleinpellii 1209C-12H-5, 50–52 224.580 231.800 1209C-12H-6, 50–52 226.080 233.225



225.330 232.513
FAD D. mohleri 1209C-12H-6, 50–52 226.070 233.225 1209A-23H-3, 45–46 226.800 234.213
CP6

226.435 233.719
FAD H. kleinpellii 1209A-23H-4, 45–46 228.305 235.713 1209A-23H-5, 45–46 229.805 237.256
CP5 NP6
229.055 236.485
FAD S. anarrhopus 1209A-23H-4, 45–46 228.300 235.713 1209A-23H-5, 45–46 229.800 237.256



229.050 236.485
FAD F. tympaniformis 1209C-13H-5, 100–102 235.840 243.260 1209C-13H-6, 100–102 237.340 244.760
CP4 NP5
236.590 244.010
FAD Fasciculithus spp. 1209C-13H-6, 100–102 237.340 244.760 1209C-13H-7, 0-2 237.840 245.270



237.590 245.015
FAD C. bidens 1209C-13H-7, 0–2 237.850 245.270 1209A-24H-5, 45–46 238.685 248.435



238.268 246.853
FAD S. primus 1209A-24H-6, 45–46 240.185 249.935 1209A-24H-7, 45–46 241.685 251.256



240.935 250.596
FAD T. pertusus 1209A-24H-7, 45–46 241.680 251.256 1209C-14H-3, 115–116 241.810 251.550



241.745 251.403
FAD E. macellus 1209C-14H-4, 100–102 243.180 252.822 1209C-14H-5, 100–101 244.680 254.294
CP3 NP4
243.930 253.558
FAD C. danicus 1209C-14H-7, 0–2 246.660 256.395 1209A-25H-3, 110–111 247.090 257.042
CP2 NP3
246.875 256.719
FAD C. tenuis 1209A-25H-5, 110–111 250.080 260.085 1209A-25H-6, 100–101 251.480 261.485
CP1b NP2
250.780 260.785
K/T boundary 1209C-15H-3, 96 251.590 261.580



CP1a NP1
251.590 261.580

Notes: LAD = last appearance datum, FAD = first appearance datum. Bold = zonal markers or primary events. OB80 = Okada and Bukry, 1980, M71 = Martini, 1971.