Datum
events |
Species
|
Age
(Ma) |
|---|---|---|
| LAD | Reticulofenestra bisecta | 23.9 |
| LAD | Sphenolithus delphix | 24.3 |
| LAD | Zygrhablithus bijugatus | 24.5 |
| LAD | Sphenolithus ciperoensis | 25.5 |
| LAD | Sphenolithus distentus | 27.5 |
| FAD | Sphenolithus ciperoensis | 29.9 |
| FAD | Sphenolithus distentus | 31.5 |
| LAD | Reticulofenestra umbilicus | 32.3 |
| LAD | Ericsonia formosa | 32.8 |
| LAD | Discoaster saipanensis | 34.2 |
| LAD | Discoaster barbadiensis | 34.3 |
| FAD | Isthmolithus recurvus | 36.0 |
| FAD | Chiasmolithus oamaruensis | 37.0 |
| LAD | Chiasmolithus grandis | 37.1 |
| FAD | Reticulofenestra bisecta | 38.0 |
| LAD | Chiasmolithus solitus | 40.4 |
| FAD | Cribrocentrum reticulatum | 42.0 |
| LAD | Nannotetrina fulgens | 43.1 |
| FAD | Reticulofenestra umbilicus | 43.7 |
| LAD | Chiasmolithus gigas | 44.5 |
| FAD | Chiasmolithus gigas | 46.1 |
| FAD | Nannotetrina fulgens | 47.3 |
| FAD | Blackites inflatus | 48.5 |
| FAD | Discoaster sublodoensis | 49.7 |
| LAD | Tribrachiatus orthostylus | 50.6 |
| FAD | Coccolithus crassus | 51.5 |
| FAD | Discoaster lodoensis | 52.8 |
| LAD | Tribrachiatus contortus | 53.6 |
| FAD | Tribrachiatus orthostylus | 53.6 |
| FAD | Tribrachiatus contortus | 54.7 |
| FAD | Discoaster diastypus | 55.0 |
| FAD | Tribrachiatus bramlettei | 55.0 |
| LAD | Fasciculithus tympaniformis | 55.3 |
| LAD | Ericsonia robusta | 55.9 |
| FAD | Rhomboaster cuspis | 56.2 |
| FAD | Cruciplacolithus eodelus | 56.2 |
| FAD | Discoaster multiradiatus | 56.2 |
| FAD | Discoaster nobilis | 56.9 |
| FAD | Heliolithus riedelii | 57.3 |
| FAD | Discoaster mohleri | 57.5 |
| FAD | Heliolithus kleinpellii | 58.4 |
| LAD | Chiasmolithus danicus | 58.6 |
| LAD | Fasciculithus pileatus | 59.1 |
| FAD | Chiasmolithus consuetus | 59.7 |
| FAD | Fasciculithus tympaniformis | 59.7 |
| FAD | Sphenolithus primus | 60.6 |
| FAD | Chiasmolithus bidens | 60.7 |
| FAD | Ellipsolithus macellus | 62.2 |
| FAD | Chiasmolithus danicus | 63.8 |
| FAD | Cruciplacolithus tenuis | 64.5 |
| FAD | Cruciplacolithus primus | 64.8 |
| FAD | Micula prinsii | 65.4 |
| FAD | Nephrolithus frequens | 65.8 |
| FAD | Micula murus | 66.2 |
| FAD | Lithraphidites quadratus | 67.5 |
| LAD | Reinhardtites levis | 69.2 |
| LAD | Tranolithus orionatus | 69.6 |
| LAD | Quadrum trifidum | 71.3 |
| LAD | Eiffelithus eximius | 75.0 |
| FAD | Quadrum trifidum | 76.0 |
| FAD | Quadrum gothicum | 77.0 |
| FAD | Ceratolithus aculeus | 78.5 |
| LAD | Marthasterites furcatus | 80.5 |
| FAD | Aspidolithus parcus | 83.5 |
Notes: LAD = last appearance datum, FAD = first appearance datum. Nannofossil datum ages taken from compilation by Shipboard Scientific Party (1997b).