At: Cryptogamie, Series, Bryologie, 24, 4 By: Grolle R., Heinrichs J.
journalAt: Johns Hopkins University Studies in Geology, 13 By: Berry E. W.
journalAt: Pan-American Geologist, 51, 4 By: Berry E. W.
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journalAt: Taxon, 49, 3 By: Doweld A. B.
journalAt: Zeitschrift für Geschiebeforschung und Flachlandsgeologie, 12, 2 By: Eisenack A.
journalAt: Journal of the Botanical Research Institute of Texas, 1, 1 By: Poinar G. O., Chambers K. L., Buckley R.
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journalAt: Johns Hopkins University Studies in Geology, 12 By: Berry E. W.