Antarctica | SE Australia | Rest of Australia | Zealandia | South America | ||

Oldest pollen recorded (Ma) | 81.4 | 83.8 | 74.5 | * | 68.0 | |

Period (Ma) | Approximate epoch | |||||

84–70 | Upper Cretaceous | 6 | 8 | 3 | 1* | 0 |

69–55 | Paleocene | 9 | 3 | 9 | 4 | 5 |

54–35 | Eocene | 12 | 11 | 13 | 4 | 3 |

34–20 | Oligocene | 2 | 8 | 4 | 6 | 1 |

19–5 | Miocene | 0 | 2 | 3 | 3 | 0 |

<5 | Pliocene/Quaternary | 0 | 3 | 0 | 6 | 0 |

Total records | 29 | 34 | 32 | 24 | 9 | |

P (Fisher’s exact probability test, two-tailed) forthe last three periods combined | — | 0.0099 | 0.3327 | 0.0001 | 0.3739 | |

P (Fisher’s exact probability test, two-tailed) forthe last three periods omitted | — | 0.2651 | 0.7046 | 0.8839 | 0.2778 |

*“Upper Cretaceous” Couper (*67*).