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Williamson, P. L. and Rickards, R. B. (2006) Eastonian (Upper Ordovician) graptolites from Michelago, near Canberra. Proceedings of the Linnean Society of New South Wales, 127. pp. 133-156.
Rickards, R. B. and Parkes, R. A. and Wright, A. J. (2005) Llandovery (Early Silurian) graptolites from the Quidong Basin, NSW. Proceedings of the Linnean Society of New South Wales, 126. pp. 143-152.
Rickards, R. B. and Farrell, J. R. and Wright, A. J. and Morgan, E. J. (2005) Silurian graptolites from the Barnby Hills Shale and Hanover Formation, New South Wales. Proceedings of the Linnean Society of New South Wales, 126. pp. 153-169. ISSN 0370-047X
