Accepted By and Published In:
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Playford, G. 1971. Palynology of Lower Cretaceous (Swan River) strata of Saskatchewan and Manitoba. Palaeontology 14: 533-565.
Accepted By:
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Song, Z.-C., Z.-S. Liu, X.-F. Wang, B.-A. Du, Y.-K. Shang, P. Huang, L.-J. Qian & D.-H. Zhang. 2000. Fossil Spores Pollen China 2: 710 pp. Science Press, Beijing.
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