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journalAt: Micropaleontology, 31, 1 By: Hasle G. R., Syvertsen E. E.
bookAt: Handb. Paläobot., München–Berlin, R. Oldenbourg, 1 By: von Pia J.
journalAt: Series of reports dealing with the systematic geology and paleontology of Maryland / Maryland Geological Survey, 6, 2 By: Berry E. W.
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bookAt: Transf. Paleobot., London, Academic Press By: Morris J. L., Edwards D. S., Richardson J. B.
journalAt: Geologický zborník, 38, 3 By: Mišík M.
journalAt: Revista Española de Micropaleontología, 22, 1 By: Mamet B. L., Herbig H.-G.