Table T4. Ages of radiolarian bioevents.
|
Event
|
Taxon
name |
Age
(Ma) |
Source of
datum |
|---|---|---|---|
| FO | Stylatractus sp. A of Nakaseko and Nishimura (1982) | ||
| LO | Stylatractus universus Hays | 0.45 | McIntyre and Kaczmarska (1996) |
| LO | Antarctissa cylindrica Petrushevskaya | 0.65 | Caulet (1991) |
| LO | Pterocarnium charybdeum trilobum (Haeckel) | 0.88 | Lazarus (1992) |
| LO | Eucyrtidium calvertense Haeckel | 1.90 | Lazarus (1992) |
| LO | Helotholus vema Hays | 2.40 | Ramsay and Baldauf (1999) |
| LO | Prunopyle titan Campbell et Clark | 3.48 | Caulet (1991) |
| LO | Desmospyris spongia Hays | 2.46 | Caulet (1991) |
| LO | Lampromitra coronata Haeckel | 3.35 | Lazarus (1992) |
| FO | Helotholus vema Hays | 4.50 | Ramsay and Baldauf (1999) |
| LCO | Lychnocanoma grande (Campbell et Clark) | 5.00 | Lazarus (1992) |
| LO | Amphymenium challengerae Weaver | 6.10 | Lazarus (1992) |
| FO | Amphymenium challengerae Weaver | 6.60 | Recalculated |
| FO | Acrosphaera (?) labrata Lazarus | 7.80 | Lazarus (1992) |
| LO | Cycladophora spongothorax (Hays) | 9.10 | Lazarus (1992) |
| ET | A.
murrayana (Haeckel) 
A. australis
Lazarus |
10.40 | Lazarus (1992) |
| FO | Eucyrtidium pseudoinflatum Weaver | 10.60 | Lazarus (1992) |
| LO | Actinomma golownini Petrushevskaya | 10.80 | Lazarus (1992) |
| FO | Cycladophora spongothorax (Hays) | 12.14 | Lazarus (1992) |
| FO | Dendrospyris megalocephalis Chen | 12.78 | Lazarus (1992) |
| FO | Actinomma golownini Petrushevskaya | 13.22 | Lazarus (1992) |
| FO | Cycladophora humerus (Petrushevskaya) | 14.18 | Abelmann (1990) |
| FO | Eucyrtidium punctatum Ehrenberg | 17.03 | Abelmann (1990) |
| FO | Cycladophora golli regipileus (Chen) | 19.10 | Abelmann (1990) |
| FO | Theocorys longithorax Petrushevskaya | 20.65 | Abelmann (1990) |
| FO | Cycladophora antiqua Abelmann | 21.95 | Abelmann (1990) |
| FO | Cyrtocapsella tetrapera (Haeckel) | 23.62 | Sanfilippo and Nigrini (1998) |
| LO | Axoprunum (?) irregularis Takemura | 32.70 | Recalculated |
| FO | Eucyrtidium antiquum Caulet | 32.96 | Recalculated |
| FO | Eucyrtidium spinosum Takemura | 37.00 | Recalculated |
| FO | Lithapium mitra (Ehrenberg) | 39.00 | Recalculated |
| FO | Eusyringium fistuligerum (Ehrenberg) | 42.00 | Recalculated |
| FO | Eusyringium lagena (Ehrenberg) | 47.00 | Recalculated |
| FO | Dictyoprora mongolfieri (Ehrenberg) | 51.00 | Recalculated |
| LO | Bekoma divaricata Foreman | 53.20 | Recalculated |
| ET | Bekoma
bidartensis Riedel et Sanfilippo
B. divaricata |
54.40 | Recalculated |
| LO | Bekoma campechensis Foreman | 55.60 | Recalculated |
| FO | Bekoma campechensis Foreman | 58.00 | Recalculated |
| FO | Miscroscidaicapsa (?) sp. | 59.70 | Recalculated |
| FO | Buryella tetradica Foreman | 60.90 | Spencer-Cervato (1999) |
| FO | Buryella foremanae Petrushevskaya | 62.80 | Spencer-Cervato (1999) |
| FO | Buryella granulata (Petrushevskaya) | 63.90 | Spencer-Cervato (1999) |
| FO | Amphisphaera kina Hollis | 64.60 | Spencer-Cervato (1999) |
| FO | Amphisphaera aotea Hollis | 65.10 | Spencer-Cervato (1999) |
Note: FO = first occurrence, LO = last occurrence, LCO = last consistent occurrence, ET = earliest transition.