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Die Pflanzen des schlesischen Terti©Þrs
H. Reimann, R. Kräusel · Preussische Geologische Landesanstalt
336 sayfa · 1919
Paleobotany / Tertiary Geologic Period
Spongiophyton nov. gen. (Thallophyta) e Haplostigma Seward (Pteridophyta) no devoniano inferior do Paraná
R. Kräusel · Serviço Gráfico do Instituto Brasileiro de Geografia e Estatística
41 sayfa · 1960
Fossil Pteridophyta / Fossil Thallophyta / Paleobotany
International Symposium on Palaeobotany "Anatomical investigations of plant fossils"
Friedmann Schaarschmidt, R. Kräusel, Germany) International Symposium on Palaeobotany (1990 Frankfurt am Main · Senckenbergische Naturforschende Gesellschaft
421 sayfa · 1992
Paleobotany / Congresses / Fossil Plants