Initial Reports, Volume 199 Ms 199-114 Chapter 14, Table T2. Calcareous nannofossil datums, Site 1221. Notes: T = top, B = bottom. * = age estimate in need of revision; event occurs 1.38 m above the P/E boundary (199-1221C-11X-3, 91 cm). ** = age estimate derived from Site 1215 data. Top Bottom Leg Site Hole Core Type Section Interval (cm) Leg Site Hole Core Type Section Interval (cm) Marker species Age (Ma) Midpoint depth (mbsf) Plus/minus depth (mbsf) 199 1221 A 1 H 3 3 199 1221 A 1 H 3 40 T Reticulofenestra umbilicus greater than or equal to 14 [mu]m 31.7 3.2 0.19 199 1221 A 1 H 5 70 199 1221 A 1 H 6 40 T Ericsonia formosa 32.9 7.3 0.6 199 1221 C 11 X 2 97 199 1221 C 11 X 2 110 T Fascicultihus spp.* 54.1 152.9 0.06 199 1221 C 11 X CC 199 1221 C 12 X 1 3 T Ericsonia robusta** 55.9 155.3 0.16 199 1221 C 12 X 1 18 199 1221 C 12 X 1 32 B Discoaster multiradiatus 56.2 155.7 0.07 199 1221 C 12 X 1 18 199 1221 C 12 X 1 32 B Discoaster nobilis 56.5 155.7 0.07