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2. The biostratigraphy of the Permian and Triassic – Part-3. A review of Gondwana Permian palynology with particular reference to the northern Karoo Basin, South Africa;Anderson;Memoir of Botanical Survey of South Africa,1977
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4. Permian palynostratigraphy of the Collie Basin, Western Australia;Backhouse;Review of Palaeobotany and Palynology,1991
5. Palynology and correlation of Permian sediments in the Perth, Collie, and Officer basins, Western Australia;Backhouse;Geological Survey Western Australia Reprint,1993