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Clavohamulus primitus - A key North American conodont found in the Georgina Basin

Created 16/10/2025

Updated 16/10/2025

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The enigmatic conodont Clavohamulus primitus Miller is described from the Tremadocian part of the Ninmaroo Formation, Georgina Basin. This key subzone species for North American sequences in Oklahoma, Texas and Utah has been discovered in two samples, one from Western Queensland and the other from the Northern Territory. The discovery enables a firmer correlation of the Lower Tremadocian part of the Georgina sequence with sequences in North America. The microstructure of C. primitus is discussed and illustrated.

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Additional Info

Field Value
Title Clavohamulus primitus - A key North American conodont found in the Georgina Basin
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/c809091f-d90a-40f3-8e01-aa52055a0bd2
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        137.8,
        -23.0
      ],
      [
        140.4,
        -23.0
      ],
      [
        140.4,
        -22.6
      ],
      [
        137.8,
        -22.6
      ],
      [
        137.8,
        -23.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Clavohamulus primitus - A key North American conodont found in the Georgina Basin". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/clavohamulus-primitus-a-key-north-american-conodont-found-in-the-georgina-basin