Citation

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Dickins, J.M., 1989. Youngest Permian marine macrofossil fauna from the Bowen and Sydney Basins, eastern Australia. BMR Journal of Australian Geology and Geophysics  11:1:63-79. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

The marine invertebrate macrofauna from the upper part of the Blenheim Subgroup of the Bowen Basin and the Kulnura Marine Tongue of the Sydney Basin is described. The fauna is assigned to 12 genera, one of which - Pseudonucula - is newly recognised, and to 13 species, of which one is new. On the basis of these descriptions and existing published information, three zones are recognised in the Blenheim subgroup, in ascending order, the Martiniopsis magna, the Martiniopsis pelicanensis and the Martiniopsis havilensis zones. An explanation is given of the conclusions of Waterhouse and Jell (1983) about the lower part of the subgroup. From the fauna, particularly the occurrence of Martiniopsis havilensis, it is concluded that a hiatus occurs in the Blenheim Subgroup between the Black Alley Shale and the Peawaddy Formation in the southwestern part of the Bowen Basin, and that the Black Alley Shale is equivalent to the MacMillan Formation in the central part of the basin and the Exmoor Formation in the northeastern part. The upper part of the Blenheim Subgroup (zone of Martiniopsis havilensis) seems to be younger than the Mulbring Shale of the Sydney Basin, and the Kulnura Tongue is not likely to be significantly younger than the Blenheim Subgroup. The faunas described appear to be younger than Kungurian, but are not likely to be younger than the Kazanian. They are rather low in diversity relative to older Permian faunas in the two basins, and this probably reflects the rather restricted marine conditions at the end of the open sea in the two basins.
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nonGeographicDataset - GA Publication - Journal

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Creative Commons Attribution 4.0 International Licence

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Commonwealth of Australia (Geoscience Australia)

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Date (publication)

1989

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nonGeographicDataset

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geoscientificInformation

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GA Publication
Journal
Earth Sciences

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English

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utf8

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pdf

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Australia
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ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2015-03-23

METADATA SECURITY CLASSIFICATION

unclassified

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Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
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Country
Australia
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