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Early Tertiary pollen from Napperby, central Australia

Created 16/10/2025

Updated 16/10/2025

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Carbonaceous clays in a stratigraphic borehole near Napperby homestead, in the southern part of the Northern Territory, have yielded a microfloral assemblage comprising over thirty form-species of pollen. The assemblage can be referred to the middle Eocene Proteacidites confragosus. Zonule on the basis of the presence of the nominate species, and is the most inland of any Australian Tertiary flora described. The Napperby sediments may be correlated, on a palynological basis, with the upper part of the Eyre Formation of northeastern South Australia; they are older than the vertebrate-bearing Waite Formation of the adjoining Alcoota Sheet area. A high frequency of pollen from aquatic and marsh-loving angiosperms and the presence of dinoflagellate cysts indicates deposition under lacustrine conditions. The presence of Nothofagus and podocarpaceous pollen types in significant amounts suggests that a humid climate prevailed, although seasonal aridity cannot be ruled out.

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Field Value
Title Early Tertiary pollen from Napperby, central Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/30d6ed8c-ace9-42fe-bd1a-714f9a197b12
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        132.0,
        -23.2
      ],
      [
        135.0,
        -23.2
      ],
      [
        135.0,
        -22.0
      ],
      [
        132.0,
        -22.0
      ],
      [
        132.0,
        -23.2
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Early Tertiary pollen from Napperby, central Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/early-tertiary-pollen-from-napperby-central-australia