References

Potonié, R. H. H. E. & Kremp, G. O. W. (1954): Die Gattungen der paläozoischen Sporae dispersae und ihre Stratigraphie. – Geologisches Jahrbuch 69: 111–194 + Taf. 20.

Leonardi, P. (1953): Flora continentale ladinica delle Dolomiti. – Memorie dell'Istituto Geologico della R. Università di Padova 18(2): 1–22, 4 pls.

Bolkhovitina, N. A. (1953): Sporovo-pyl'tsevaya kharakteristika melovykh otlozheniy tsentral'nykh oblastey SSSR [Spore-pollen characteristics of the Cretaceous sediments of the central regions of the USSR]. – Trudy Instituta geologicheskikh nauk Akademii nauk SSSR 146: 1–184.

Corsin, P. M. (1951): Bassin houiller de la Sarre et de la Lorraine. I. Flore fossile. 4me Fascicule Pécoptéridées. Gîtes Minéeraux de la France: 370 pp. + 199 pls.

Bell, W. A. (1949): Uppermost Cretaceous and Paleocene floras of western Alberta. – Bulletin, Geological Survey of Canada 13: 1–231.

Moore, L. R. (1946): On the spores of some Carboniferous plants; their development. – Quarterly Journal of the Geological Society of London 102(part 3, no. 407): 251–298 + pls 16–18.

Hoskins, J. H. & Cross, A. T. (1940): Two new species of Lepidostrobus from the Lower Pottsville of Orange Country, Indiana. – The American Midland Naturalist 24(2): 421–436.

Lang, W. H. (1937): On the plant-remains from the Downtonian of England and Wales. – Philosophical Transactions of the Royal Society of London, Series B – Biological Sciences 227(544): 245–291.

Shimakura, M. (1936): On the fossil wood of Torreya nucifera Sieb. et Zucc. from the Pleistocene of Kanagawaken, Japan. – The Journal of the Geological Society of Japan 43(512): 297–302 + pl. 17.

Graham, R. (1935): Pennsylvanian flora of Illinois as revealed in coal balls. II. – Botanical Gazette 97(1): 156–168.

Berry, E. W. (1935): A preliminary contribution to the floras of the Whitemud and Ravenscrag formations. – Memoir, Geological Survey, Canada 182: 1–107.

Miner, E. L. (1935): Paleobotanical examinations of Cretaceous and Tertiary coals. – The American Midland Naturalist 16(4): 585–625.

Graham, R. (1934): Pennsylvanian flora of Illinois as revealed in coal balls. I. – Botanical Gazette 95(3): 453–476.

Berry, E. W. (1930): Revision of the lower Eocene Wilcox flora of the Southeastern States. – Professional Papers, United States Geological Survey 156: 1–196, 50 pls.

Kryshtofovich, A. N. (1929): Otkrytie drevneyshikh dvudol'nykh pokrytosemennykh i ekvivalentov potomakskikh sloyev na Suchane v Ussuriyskom krae. – Izvestiya Geologicheskogo Komiteta 48(9): 1357–1390.

Rühle von Lilienstern, H. (1928): "Dioonites pennaeformis Schenk", eine fertile Cycadee aus der Lettenkohle. – Paläontologische Zeitschrift 10(1): 91–107.

Berry, E. W. (1925): A Miocene flora from Patagonia. – Johns Hopkins University Studies in Geology 6: 183–251.

Knowlton, F. H. (1924): Flora of the Animas Formation. – Professional Papers, United States Geological Survey 134: 71–117, XIX pls.

Berry, E. W. (1924): An Oligocene cashew nut from South America. – American Journal of Science, Ser. 5 8(44): 123–126.

Berry, E. W. (1924): The Middle and Upper Eocene floras of southeastern North America. – Professional Papers, United States Geological Survey 92: 1–199, LXV pls.