548 6.26.91 JPB deepest sample 35-1,90-93 548 GrpEvent Plotcode Y. Age Old Age Top depth Bottom depth 548 D 0.00 0.00 0.00 0.00 548 F TOP G.tosaensis Ttos 0.60 13-6,54 14-1,36 548 F TOP G.obliquus extremus Tobe 1.80 22-1,116 23-1,96 548 F BT G.truncatulinoides Btrc 1.90 13-6,51 14-1,33 548 F TOP Sph.psis spp TSdp 3.00 26-1,63 27-1,7 548 F BT G.inflata Bifl 3.00 18-3,82 19-1,102 548 F TOP G.margaritae Tmgt 3.40 26-1,62 27-1,5 548 F BT G.crassaformis s.s. Bcrs 4.10 31-2,90 31-3,90 548 F BT G.puncticulata Bptc 4.40 33-2,90 33-3,90 548 M Brunhes B1N1 0.73 11-3,102 11-4,34 548 M Jaramillo T1N2 0.91 11-5,102 12-1,139 548 M Jaramillo B1N2 0.98 13-2,117 13-3,98 548 M Olduvai T2N1 1.66 13-6,17 15-1,111 548 M Olduvai B2N1 1.88 15-5,111 15-7,13 548 M Gauss T2AN1 2.47 16-3,111 16-4,111 548 N Emiliania huxleyi A Ehu 0.09 1-1,14 1-2,90 548 N Emiliania huxleyi B Ehu 0.28 5-CC 6-1,50 548 N Pseudoemiliania lacunosa T Pla 0.47 7-2,40 7-4,40 548 N Helicosphaera sellii T Hse 1.37 19-1,45 19-2,45 548 N Calcidiscus macintyrei T Cma 1.45 14-CC 15-2,30 548 N Gephyrocapsa oceanica B Goc 1.68 13-3,35 13-CC 548 N Discoaster brouweri T Dbr 1.90 19-2,45 20-1,10 548 N Discoaster asymmetricus T Das 2.20 25-CC 26-2,79 548 N Discoaster pentaradiatus T Dpe 2.40 19-2,45 20-1,10 548 N Discoaster surculus T Dsu 2.40 19-2,45 20-1,10 548 N Discoaster tamalis T Dta 2.60 25-CC 26-2,79 548 N Pseudoemiliana lacunosa B Pla 3.40 29-2,60 30-1,60 548 N Sphenolithus abies/neoabies T Sna 3.47 30-1,60 31-1,60 548 N Reticulofenestra pseudoumbilicus T Rps 3.50 19-1,45 19-2,45 548 R 0.00 0.00 0.00 0.00