Initial Reports Volume 192 Chapter 5, Table T5. List of planktonic foraminifer and calcareous nannofossil highest and lowest occurrences in Unit I. Notes: HO = highest occurrence, LO = lowest occurrence. Ages are from Berggren et al. (1995). Core, section, interval (cm) Event Species Zone/Subzone Depth (mbsf) Age (Ma) Stage/Epoch 192-1185A- upper Eocene 2R-1, 1 Highest sample 250.60 2R-1, 1 HO C. consuetus NP19 250.60 2R-CC HO G. cerroazulensis P17 253.22 33.8 3R-1, 30 HO S. radians NP19 260.50 3R-CC HO C. reticulatus NP19 262.21 35.0 3R-CC LO G. ampliapertura P16 262.21 3R-CC LO G. euapertura P16 262.21 4R-1, 25 HO S. intercalaris NP18 270.05 5R-1, 26 HO H. lophota NP18 279.76 5R-CC LO T. increbescens P16 281.28 5R-CC LO G. angiporoides P16 281.28 6R-1, 108 HO C. grandis NP17 290.18 37.1 middle Eocene 6R-2, 6 LO S. intercalaris NP17 290.66 6R-CC HO G. senni 291.27 7R-1, 91 HO S. obtusus 299.71 7R-CC HO H. cf. bolivariana 301.82 7R-CC LO D. bisectus NP17 301.82 38.0 8R-1, 3 LO G. index P12 308.43 42.9 8R-1, 8 HO C. solitus NP16 308.48 40.4 8R-1, 10 LO C. reticulatus NP16 308.50 42.0 8R-1, 10 Lowest sample above basement 308.50 9R-4, 97 HO R. asper 322.45 93.2 Albian-Cenomanian 10R-1, 49 HO M. chiastius 323.09 93.5 10R-1, 49 LO T. exiguus 323.09 early Albian 192-1185B- 2R-1, 40 Highest sample 308.40 middle Eocene 2R-1, 40 HO C. solitus NP16 308.40 40.4 2R-1, 146 HO G. micra 309.46 2R-1, 149 LO C. reticulatus NP16 309.49 42.0 2R-1,149 Lowest sample above basement 309.49 4R-2, 42 HO R. asper 321.12 93.2 Albian-Cenomanian 4R-2, 42 HO M. chiastius 321.12 93.5 4R-3, 58 LO P. columnata 322.78 112.3 Aptian