|
Marker species/
Zonal boundaries |
Age
(Ma) |
Depth
(mcd) |
±
(m) |
|---|---|---|---|
| Nannofossil events: |
|
|
|
| T Triquetrorhabdulus carinatus acme* | 22.00 | 25.75 | 0.65 |
| B Sphenolithus ciperoensis | 28.10 | 42.29 | 0.40 |
| T Sphenolithus pseudoradians | 29.10 | 47.07 | 0.67 |
| B Sphenolithus distentus | 30.40 | 57.49 | 0.65 |
T Reticulofenestra umbilicus  14 µm |
31.70 | 68.82 | 0.35 |
| T Ericsonia formosa | 32.90 | 73.69 | 0.20 |
| X Tribrachiatus contortus/T. orthostylus | 53.40 | 210.26 | 0.13 |
| B Tribrachiatus bramlettei | 53.80 | 214.38 | 1.94 |
| T Fascicultihus spp.† | 54.10 | 217.14 | 0.13 |
| X Fascicultihus/Rhomboaster† |
|
217.21 | 0.05 |
| B Rhomboaster spp.† | 54.10 | 217.49 | 0.13 |
| Foraminifer events: |
|
|
|
| Benthic extinction event | 55.00 | 218.39 | 0.01 |
| Radiolarian events: |
|
|
|
| RN1/RP22 | 23.62 | 24.40 | 0.50 |
| RP22/21 | 24.60 | 33.45 | 0.75 |
| RP21/20 | 28.80 | 52.29 | 1.00 |
| RP20/19 | 32.80 | 76.72 | 0.88 |
| RP19/18 | 34.90 | 82.85 | 0.75 |
| RP18/17 | 36.40 | 93.19 | 0.75 |
| RP17/16 | 37.70 | 100.52 | 0.75 |
| RP16/15 | 38.80 | 114.19 | 0.32 |
| RP15/14 | 39.50 | 125.60 | 0.22 |
| RP14/13 | 42.80 | 138.27 | 0.75 |
| RP13/12 | 44.50 | 149.39 | 0.75 |
| RP12/11 | 47.50 | 160.10 | 1.85 |
| RP11/10 | 48.50 | 183.34 | 5.47 |
| RP10/9 | 49.00 |
|
|
| RP9/8 | 50.30 | 183.34 | 5.47 |
| RP8/7 | 52.80 | 202.98 | 5.23 |
Notes: * = based on Cande and Kent (1995) time scale, 900 k.y. subtracted from age estimates for T. carinatus acme. T = top, B = bottom, X = abundance cross-over. † = age estimates in need of revision; events occur 0.77-1.38 m above the P/E boundary (199-1220B-20X-2, 78 cm). This table is also available in ASCII.