At: Geological quarterly, 36, 1 By: Marcinkiewicz T.
journalAt: Mededelingen van de Geologische Stichting, Series, Nieuwe, 22 By: Dijkstra S. J.
bookAt: Wiss. Ergebn. Schwed. Südpol.-Exped. 1901-1903, Stockholm, Lithographisches Institut des Generalstabs, 3, 14 By: Halle T. G.
journalAt: Science, New Series, 1, 13 By: Ward L. F.
journalAt: Journal of the Faculty of Science of the Hokkaido Imperial University, Series, 4, Geology and mineralogy, 5, 2-4 By: Ôishi S.
journalAt: Review of Palaeobotany and Palynology, 210 By: Nosova N. V., Golovneva L. B.
journalAt: Mining and geological journal, 6, 5 By: Douglas J. G.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 141, 1-2 By: Becker H. F.
journalAt: Geological Magazine, 76, 11 By: Murray N.
journalAt: Professional Papers / United States Geological Survey, 92 By: Berry E. W.