Table T4. Calcareous nannofossil datums used, Leg 190.
|
Datum
events |
Species
|
Age
(Ma) |
|---|---|---|
| FAD | Emiliania huxleyi acme | 0.085 |
| Helicosphaera inversa | 0.14 | |
| FAD | Emiliania huxleyi | 0.26 |
| LAD | Pseudoemiliania lacunosa | 0.46 |
| LAD | Reticulofenestra asanoi | 0.88 |
| FAD | Reticulofenestra asanoi | 1.06 |
| LAD | Helicosphaera sellii | 1.46 |
| LAD | Calcidiscus macintyrei | 1.67 |
| FAD | Gephyrocapsa oceanica | 1.77 |
| LAD | Discoaster brouweri | 1.95 |
| LAD | Discoaster pentaradiatus | 2.52 |
| LAD | Discoaster surculus | 2.55 |
| LAD | Reticulofenestra pseudoumbilicus (>7 µm) | 3.8 |
| LAD | Amaurolithus spp. | 4.00 |
| FCO | Discoaster asymmetricus | 4.13 |
| FAD | Ceratolithus cristatus | 5.05 |
| LAD | Discoaster quinqueramus | 5.54 |
| FAD | Amaurolithus primus | 7.4 |
| FAD | Discoaster quinqueramus | 8.60 |
| LAD | Reticulofenestra pseudoumbilicus (>7 µm) | 9.0 |
| LAD | Discoaster hamatus | 9.63 |
| FAD | Discoaster hamatus | 10.7 |
| FAD | Catinaster coalitus | 10.9 |
| LAD | Discoaster kugleri | 11.5 |
| FAD | Discoaster kugleri | 11.8 |
| LAD | Orthorhabdus serratus | 12.3 |
| LAD | Sphenolithus heteromorphus | 13.6 |
| LAD | Helicosphaera ampliaperta | 15.6 |
| LAD | Sphenolithus belemnos | 19.2 |
| FAD | Sphenolithus belemnos | 19.2 |
| FAD | Discoaster druggii | 23.2 |
Note: FAD = first appearance datum; FCAD = first common appearance datum; LAD = last appearance datum.