Initial Reports, Volume 199 Ms 199-111 Chapter 11, Table T8. Distribution of radiolarian datum levels, Site 1218. Note: T = top, B = bottom. Top Bottom Marker species/Zonal boundaries Age (Ma) Leg Site Hole Core Type Section Interval (cm) Leg Site Hole Core Type Section Interval (cm) Depth (mbsf) Midpoint Depth (mbsf) Plus/Minus Depth (mcd) Midpoint Depth (mcd) Plus/Minus T Stylatractus universus 0.41 199 1218 A 1 H 2 45 199 1218 A 1 H 3 46 2.71 0.76 2.71 0.76 B Collosphaera tuberosa 0.61 199 1218 A 1 H 3 46 199 1218 A 1 H 4 45 4.21 0.75 4.21 0.75 T Calocycletta caepa 6.2 199 1218 A 3 H 5 46 199 1218 A 3 H 6 46 24.91 0.75 27.25 0.75 T Stichocorys johnsoni 6.6 199 1218 A 3 H 5 46 199 1218 A 3 H 6 46 24.91 0.75 27.25 0.75 Lithopera neotera -> L. bacca 8.8 199 1218 A 4 H 2 45 199 1218 A 4 H 5 45 31.40 2.25 35.82 2.25 T Carpocanopsis cristata 10.6 199 1218 A 4 H 3 45 199 1218 A 4 H 4 45 31.40 0.75 35.82 0.75 RN7/6 8.77 199 1218 A 4 H 3 45 199 1218 A 4 H 5 47 32.15 1.50 36.57 1.50 T Stichocorys wolffii 8.8 199 1218 A 4 H 4 45 199 1218 A 4 H 5 45 32.90 0.75 37.32 0.75 T Cyrtocapsella cornuta 12.1 199 1218 A 4 H 4 45 199 1218 A 4 H 5 45 32.90 0.75 37.32 0.75 T Cyrtocapsella tetrapera 12.1 199 1218 A 4 H 5 45 199 1218 A 4 H 6 45 34.40 0.75 38.82 0.75 T Dorcadospyris alata 13.6 199 1218 A 4 H 6 45 199 1218 A 4 H 7 45 35.90 0.75 40.32 0.75 RN6/5 11.95 199 1218 B 5 H 3 22 199 1218 A 4 H CC 36.33 0.71 41.37 0.09 T Calocycletta costata 15 199 1218 A 4 H CC 199 1218 A 5 H 1 45 37.09 0.06 41.70 0.25 T Carpocanopsis bramlettei 14.7 199 1218 A 5 H 3 45 199 1218 A 5 H 4 47 40.90 0.75 45.70 0.75 RN5/4 15.7 199 1218 A 5 H 4 45 199 1218 A 5 H 5 47 42.41 0.76 47.21 0.76 RN4/3 17 199 1218 A 6 H 1 45 199 1218 A 6 H 2 45 47.40 0.75 54.24 0.75 RN3/2 17.9 199 1218 A 6 H 7 45 199 1218 A 6 H CC 55.24 0.09 62.08 0.09 RN2/1 20.53 199 1218 A 7 H 6 46 199 1218 A 7 H 7 46 64.41 0.75 72.47 0.75 RN1/RP22 23.62 199 1218 A 9 H 5 74 199 1218 B 10 H 2 72 81.77 0.33 92.30 0.60 RP22/21 24.6 199 1218 A 11 H 3 44 199 1218 A 11 H 4 44 97.89 0.75 111.29 0.75 RP21/20 28.8 199 1218 A 18 H 6 46 199 1218 A 18 H CC 168.87 0.79 189.43 0.79 RP20/19 32.8 199 1218 A 23 X CC 199 1218 B 17 X 4 58 215.40 0.06 239.23 0.65 RP19/18 34.9 199 1218 A 24 X CC 199 1218 A 25 X 1 24 224.91 0.04 250.58 0.63 RP18/17 36.4 199 1218 A 25 X 1 24 199 1218 A 25 X 2 82 225.98 1.04 252.25 1.04 RP17/16 37.7 199 1218 A 26 X 1 46 199 1218 A 26 X 2 45 235.51 0.75 261.58 0.75 RP16/15 38.8 199 1218 A 27 X 1 45 199 1218 A 27 X 2 45 245.10 0.75 271.23 0.75