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journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 197, 1-3 By: Knight J. A.
journalAt: American Midland Naturalist, 1951, 46, 3 By: Hoskins J. H., Cross A. T.
journalAt: Review of Palaeobotany and Palynology, 129, 4 By: Axsmith B. J., Andrews F. M., Fraser N. C.
journalAt: Kongliga Svenska Vetenskaps-Akademiens Handlingar, Series, Ny följd, Series 3, 12, 6 By: Halle T. G.
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journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 132, 5-6 By: Trivedi B. S., Verma C. L.
journalAt: Memoirs of the Queensland Museum, 32, 1 By: Rozefelds A. C. F.
journalAt: Torreya, 26, 1 By: Cockerell T. D. A.