Dinoflagellate Cysts and Pollen from Sediment Samples, Mississippi Sound and Gulf of Mexico U.S. Geological Survey Open-file Report 01-415-D 2001 Table 1. Percent abundance of dinoflagellate cysts in Mississippi Sound and Gulf of Mexico. Field No. R No. Long.(deg.) Lat.(deg.) Depth (ft.) n Cysts/g P. zoharyi M. cf. M. quanta M. quanta P. oblongum Brigantedinium spp. misc. peridinialean cysts Spiniferites spp. L. machaerophorum Operculodinium spp. N. rigida T. vancampoae GC-1,21-23" R4515A 88.707833 30.330833 4 240 NC 91.7 0.4 0.0 0.0 0.0 0.0 6.3 0.4 0.8 0.0 0.0 GC-3,12-15" R4517A 88.719500 30.284333 12 296 NC 73.6 8.4 0.0 0.0 0.0 0.0 13.1 0.7 1.0 1.0 0.3 GC-4,6-9" R4518A 88.722000 30.266667 15 329 NC 76.9 3.0 1.2 0.6 0.3 0.0 11.6 1.2 0.3 2.1 0.3 GC-6D R4596 88.978500 30.261833 16 210 150 71.0 14.8 2.4 1.0 0.0 0.5 3.8 3.3 0.5 1.0 0.5 GC-6E R4597 88.963000 30.244000 18 129 100 70.0 17.8 0.0 0.8 0.0 0.0 5.4 5.4 0.0 0.8 0.0 GC-7A R4598 88.981500 30.171000 30 234 260 62.8 25.6 0.0 0.9 0.0 0.0 6.4 1.7 0.0 0.9 1.3 GC-7B R4599 88.954500 30.179500 23 338 100 59.8 28.4 0.0 0.6 0.0 0.6 5.6 3.3 0.0 0.3 0.3 GC-7C R4600 88.937333 30.182500 26 253 51 67.2 13.0 0.8 2.4 0.4 0.0 5.1 4.0 1.6 0.0 1.6 GC-7D R4601 89.003167 30.160333 28 289 200 64.7 20.8 1.0 0.0 0.3 1.0 7.3 1.0 0.3 1.4 0.0 GC-7E R4602 88.994833 30.163667 28 300 570 55.0 28.3 2.7 1.7 0.0 0.3 7.3 2.0 1.3 1.3 0.0 GC-8A R4603 88.912833 30.147167 33 226 110 58.8 23.0 0.0 3.1 0.0 2.2 4.0 2.7 0.0 0.0 0.0 GC-9A 2-4" R4608A 88.378000 30.188167 32 300 80 27.7 66.3 0.7 0.3 0.0 0.7 3.0 0.7 0.0 0.3 0.0 GC-9B R4609 88.373667 30.171667 41 86 4 37.2 40.7 2.3 1.2 0.0 0.0 3.5 1.2 1.2 0.0 0.0 GC-9C R4610 88.365667 30.124833 60 263 160 25.5 49.8 6.1 4.6 0.0 4.6 3.0 1.9 1.5 0.4 0.8 GC-10A R4611 88.510833 30.071000 60 222 NC 27.5 48.2 3.6 1.4 0.0 1.8 4.1 2.3 2.7 0.5 0.0 GC-10B R4612 88.505000 30.110500 49 109 5 22.0 43.1 0.9 2.8 1.8 0.9 5.5 0.0 0.0 1.8 1.8 GC-11A R4613 88.768500 30.129333 44 335 170 49.0 31.3 1.5 3.9 0.3 2.1 6.0 1.8 0.6 0.6 0.3 GC-11B R4614 88.790333 30.206333 33 284 450 45.1 37.3 3.9 0.4 0.4 0.4 4.2 3.9 0.4 0.4 0.4 GC-13A R4621 88.605333 30.226667 22 316 190 45.9 34.2 0.6 0.9 0.0 0.0 4.7 2.2 0.3 0.9 0.0 GC-13B R4622 88.663000 30.243333 18 267 270 57.3 28.5 0.0 1.1 0.0 0.0 3.7 5.2 0.4 0.7 0.4 GC-13C R4623 88.661000 30.269333 16 251 450 68.9 18.7 0.0 1.2 0.0 0.4 3.6 3.2 0.0 0.4 1.6 GC-13F R4626 88.600833 30.334000 5 32 5 87.5 0.0 0.0 0.0 0.0 0.0 6.3 3.1 3.1 0.0 0.0 GC-13G R4627 88.603833 30.316000 10 137 180 60.6 19.7 0.0 0.7 0.0 0.0 4.4 0.0 0.7 0.0 2.2 GC-14A R4628 88.533667 30.265500 17 226 230 51.3 32.3 0.4 0.9 0.0 1.3 3.1 1.3 0.4 0.9 0.9 GC-14D R4631 88.502667 30.269167 18 268 400 66.0 25.0 0.0 0.4 0.0 1.5 3.0 0.7 0.0 0.7 0.0 GC-14G R4634 88.529333 30.260500 18 300 280 75.7 18.0 0.3 0.3 0.0 0.3 3.0 0.3 0.0 0.3 0.7 GC-15A R4635 88.429833 30.347167 6 196 NC 91.3 2.6 0.0 0.0 0.0 0.5 3.1 0.0 0.0 0.5 0.0 GC-15B R4636 88.430667 30.337500 7 143 NC 83.2 9.1 0.0 0.7 0.0 0.0 1.4 0.0 0.7 0.0 0.0 GC-15D R4638 88.465833 30.308667 12 272 50 83.1 7.3 0.4 0.4 0.0 0.0 4.8 0.4 0.0 0.0 0.7 GC-15E R4639 88.477500 30.297167 12 285 340 74.0 16.5 0.0 0.0 0.0 0.7 4.9 0.4 0.0 0.4 0.4 GC-16B R4641 88.384167 30.299833 17 214 260 55.1 30.8 0.9 0.9 0.9 0.0 5.6 0.9 0.9 0.5 0.5 GC-16D R4643 88.381000 30.257333 20 271 NC 74.5 10.3 0.7 1.5 0.0 0.0 4.1 0.7 0.7 0.0 1.5 GC-16E R4644 88.380000 30.231667 21 237 50 52.7 31.2 0.0 2.1 0.0 3.0 4.6 3.0 0.8 0.0 1.3 Field No. R No. Long.(deg.) Lat.(deg.) Depth (ft.) n Cysts/g P. zoharyi M. cf. M. quanta M. quanta P. oblongum Brigantedinium spp. misc. Congruentidiaceae Spiniferites spp. L. machaerophorum Operculodinium spp. N. rigida T. vancampoae