Initial Reports, Volume 208 Ms 208IR-101 Chapter 1, Table T3. Calcareous nannofossil and planktonic foraminiferal datum levels in the Eocene-Oligocene transition interval. Note: T = top, B = bottom. Age (Ma) Site 1263 depth (mcd) Site 1265 depth (mcd) Site 1266 depth (mcd) Site 1267 depth (mcd) Site 1262 depth (mcd) Eocene/Oligocene 33.7 94.54 190.00 219.00 148.00 78.00 T Ericsonia formosa 32.9 Hole 1263A: 85.47-96.13 Hole 1265A: 177.32-188.80 Hole 1266A: 207.61-207.78 Hole 1267A: 134.37-136.45 Hole 1262A: 75.29-77.16 Hole 1263B: 85.52-86.00 Hole 1266C: 207.96-219.02 Hole 1262B: 75.70-75.87 B Ericsonia obruta increase 33.7 Hole 1263A: 94.49-95.04 T Discoaster saipanensis 34.0 Hole 1263A: 103.87-104.33 Hole 1265A: 192.02-194.61 Hole 1266A: 221.00-221.80 Hole 1267A: 145.85-146.86 Hole 1262A: 78.12-81.04 Hole 1263B: 103.68-104.92 Hole 1265B: 192.78-195.98 Hole 1267B: 139.48-150.03 Hole 1262B: 78.83-79.62 T Discoaster barbadiensis 34.2 Hole 1266A: 222.40-223.30 Hole 1262A: 78.12-81.04 Hole 1262B: 78.83-79.62 T Pseudohastigerina spp. 32.0 68.72-73.69 177.32-182.69 207.78-219.26 T Hantkenina spp. 33.7 99.97-108.13 188.80-192.02 T Turborotalia cerroazulensis group 33.8 96.13-99.17 198.13-204.08 T Globigerinatheca index 34.3 99.97-108.13 192.02-198.13 219.26-230.60 139.48-145.85 83.94-87.97