At: Proceedings of the National Academy of Sciences, India, 7, 3 By: Sahni B., Rode K. P.
journalAt: Boletim / Instituto de Geociências, Universidade de São Paulo, Series, Publicação especial, 7 By: Fittipaldi F. C., Simões M. G., Giulietti A. M., Pirani J. R.
journalAt: Proceedings of the United States National Museum, 54, 2256 By: Berry E. W.
journalAt: Meddelelser om Grønland, 172, 5 By: Koch B. E.
journalAt: Journal of the Washington Academy of Sciences, 25, 3 By: Berry E. W.
journalAt: Saitō Hō-on Kai Museum research bulletin, 19 By: Okutsu H.
journalAt: Journal of the Indian Botanical Society, 26 By: Saksena S. D.
journalAt: Papers of the Michigan Academy of Science, Arts and Letters, 17 By: Arnold C. A.
journalAt: Johns Hopkins University Studies in Geology, 13 By: Berry E. W.
journalAt: Professional Papers / United States Geological Survey, 131, G By: Knowlton F. H.