This contribution reviews the newly revised biostratigraphy of Middle–Upper Ordovician marine shelf successions from the Junee–Narromine Volcanic Belt in central New South Wales, based on conodont studies from four areas covering the northern, central and southern sectors of the Belt. Seven conodont biozones ranging from the middle Darriwilian (Histiodella holodentata-Eoplacognathus pseudoplanus Biozone) to the lower Katian (Taoqupognathus blandus Biozone) are recognized in the Billabong Creek Formation exposed in the Gunningbland area. This includes the first known biostratigraphic succession in Australia that extends continuously from the middle Darriwilian to the basal Sandbian. These new data are crucial for a better understanding of the geological evolution of this region in central New South Wales, and for the enhanced correlation of Ordovician rocks throughout the Macquarie Volcanic Province, which hosts substantial porphyry Cu–Au mineral deposits.
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https://doi.org/10.1080/08120090601146805
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https://doi.org/10.1080/08120090601146789
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https://doi.org/10.1144/SP533-2022-265
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https://doi.org/10.1080/03115510108619212
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https://doi.org/10.1080/08120090500304273
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https://doi.org/10.1080/03115518.2017.1282982
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Zhen, Y. Y., Webby, B. D. and Barnes, C. R. 1999. Upper Ordovician conodonts from the Bowan Park succession, central New South Wales, Australia. Geobios, 32, 73–104.
https://doi.org/10.1016/S0016-6995(99)80084-9
Zhen, Y. Y., Percival, I. G. and Webby, B. D. 2004. Conodont faunas from the Mid to Late Ordovician boundary interval of the Wahringa Limestone Member (Fairbridge Volcanics), central New South Wales. Proceedings of the Linnean Society of New South Wales, 125, 141–164.
Zhen, Y. Y., Burrett, C. F., Percival, I. G. and Lin, B. Y. 2010. A Late Ordovician conodont fauna from the Lower Limestone Member of the Benjamin Limestone in central Tasmania, and revision of Tasmanognathus careyi Burrett, 1979. Proceedings of the Linnean Society of New South Wales, 131, 43–72.
Zhen, Y. Y., Wells, T. J., Simpson, C. J. and Parslow, J. 2022. Late Ordovician subsurface carbonates and fossil assemblages from the area immediately west and northwest of Peak Hill in central New South Wales and their regional correlation. Australian Journal of Earth Sciences, 69, 690–710.
https://doi.org/10.1080/08120099.2022.2031294
