Table T12. Calcareous nannofossil and dinoflagellate cyst (palynomorph) datums, Hole 1276A.
Biostratigraphic datum
Age
(Ma)
Present
Absent
Median depth (mbsf)
Depth (mbsf)
Core, section,
interval (cm)
Depth (mbsf)
Core, section, interval (cm)
Cenozoic nannofossils

210-1276A-

210-1276A-
LO Discoaster barbadiensis 34.3 803.51 2R-CC
803.36 2R-3, 36 803.43
FO Reticulofenestra bisecta 38.0 803.51 2R-CC
810.30 3R-2, 51 806.91
LO Chiasmolithus solitus 40.4 810.30 3R-2, 51
803.51 2R-CC 806.91
FO Reticulofenestra umbilicus 43.7 819.26 3R-CC
848.43 7R-1, 43 833.85
FO Rhabdosphaera inflata 48.5 866.13 8R-CC
876.92 9R-CC 871.53
FO Discoaster sublodoensis 49.7 876.92 9R-CC
885.37 10R-CC 881.15
FO Discoaster lodoensis 52.85 901.05 12R-4, 55
906.21 13R-1, 51 903.63
FO Tribrachiatus orthostylus 53.6 906.05 13R-1, 35
906.21 13R-1, 51 906.13
FO Tribrachiatus contortus 54.7 906.66 13R-1, 96
910.39 13R-CC 908.53
FO Discoaster diastypus 55.0 915.54 14R-1, 24-25
916.34 14R-1, 104-105 915.94
LO Fasciculithus tympaniformis 55.3 916.34 14R-1, 104-105
915.54 14R-1, 24-25 915.94
FO Discoaster multiradiatus 56.2 920.64 14R-CC
942.23 16R-CC 931.44
FO Fasciculithus ulii 59.9 942.23 16R-CC
953.66 17R-CC 947.95
FO Cruciplacolithus primus 64.8 963.40 18R-CC
970.55 19R-CC 966.98
Mesozoic nannofossils






FO Micula prinsii 65.4 988.32 21R-CC
997.41 22R-CC 992.87
FO Nephrolithus frequens 65.8 992.42 22R-1, 2
997.41 22R-CC 994.92
FO Lithraphidites quadratus 67.5 992.42 22R-1, 2
997.41 22R-CC 994.92
FO Uniplanarius trifidus 76.0 1019.07 24R-CC
1027.68 25R-5, 48-49 1023.38
FO Ceratolithoides aculeus 78.5 1027.68 25R-5, 48-49
1056.46 28R-5, 76-77 1042.07
FO Lithastrinus septenarius 89.3 1057.36 28R-CC
1067.61 29R-CC 1062.49
FO Marthasterites furcatus 89.3 1057.36 28R-CC
1067.61 29R-CC 1062.49
FO Quadrum gartneri 93.2 1076.64 30R-CC
1079.25 31R-1, 25-26 1077.95
FO Lithraphidites acutus 96.8 1126.87 35R-CC
1135.58 36R-CC 1131.23
FO Corollithion kennedyi 97.6 1135.58 36R-CC
1145.43 37R-CC 1140.51
FO Eiffellithus turriseiffelii 101.7 1212.91 44R-CC
1221.50 45R-CC 1217.21
FO Eiffellithus monechiae 105.0 1279.06 51R-CC
1298.19 53R-CC 1288.63
FO Axopodorhabdus albianus 106.1 1430.11 67R-CC
1447.96 69R-CC 1439.04
FO Tranolithus orionatus 107.3 1524.40 77R-CC
1535.45 78R-CC 1529.93
FO Hayesites albiensis 112.5 1642.40 90R-CC (uncertain)
1649.80 91R-CC 1646.10
Cenozoic dinoflagellate cysts






LO Lentinia serrata 33.5 803.51 2R-CC
759.19 1R-CC 781.35
FO Areoligera semicirculata 33.7 759.19 1W-CC
803.51 2R-CC 781.35
LO Hemiplacophora semilunifera 33.6 819.26 3R-CC
803.51 2R-CC 811.39
FO Hemiplacophora semilunifera 36.4 819.26 3R-CC
825.90 4R-CC 822.58
FO Enneadocysta pectiniformis 36.5 825.90 4R-CC
838.15 5R-CC 832.03
LO Cerebrocysta bartonensis 38.0 838.15 5R-CC
825.90 4R-CC 832.03
FO Lentinia serrata 40.0 847.40 6R-CC
857.68 7R-CC 852.54
FO Rhombodinium draco 40.5 847.40 6R-CC
857.68 7R-CC 852.54
FO Cordosphaeridium cantharellum 40.8 847.40 6R-CC
857.68 7R-CC 852.54
FO Cerebrocysta bartonensis 41.0 857.68 7R-CC
942.23 16R-CC 899.96
FO Alisocysta margarita 61.7 953.66 17R-CC
963.40 18R-CC 958.53
LO Oligosphaeridium pulcherrimum 63.0 963.40 18R-CC
953.66 17R-CC 958.53
LO Spongodinium delitiense 63.7 982.82 20R-CC
963.40 18R-CC 973.11
FO Damassadinium californicum 64.8 982.82 20R-CC
1067.61 29R-CC 1025.22
Mesozoic dinoflagellate cysts






LO Litosphaeridium siphoniphorum 93.8 1076.64 30R-CC
1067.61 29R-CC 1072.13
FO Senoniasphaera rotundata alveolata 93.1 1067.61 29R-CC
1076.64 30R-CC 1072.13
FO Chatangiella verrucosa 93.5 1076.64 30R-CC
1086.88 31R-CC 1081.76
LO Ovoidinium verrucosum 95.8 1107.76 33R-CC
1098.33 32R-CC 1103.05
FO Xiphophoridium alatum 98.0 1164.03 39R-CC
1107.76 33R-CC 1135.90
FO Palaeohystrichophora infusorioides 99.9 1221.50 45R-CC
1324.66 56R-CC 1273.08

Notes: LO = last occurrence, FO = first occurrence. Age references are found in Tables T1, T3, and T5, all in the "Explanatory Notes" chapter.