“…Paleogene diatoms have been described from wellknown land sections: as Mors, Denmark (early Eocene) by Heiberg (1863), Grunow (1866Grunow ( , 1884, Kitton (1870/71), Prinz (1881), Prinz and Van Ermengem (1883), Van Ermengem (1885), Van Heurck (1880-1885, Stolley (1899), Tsumura (1963), and Benda (1972); from localities in north Germany, early Eocene sediments (Schulz, 1927) and Hustedt in Wetzel (1935) described diatoms from a section near Heiligenhafen (late Eocene) and Benda (1965) from the Tarras of Fehmarn (upper early Eocene); from middle Eocene localities in the Soviet Union, in west Siberia and west Kazakstan and late Eocene localities in west Siberia and the Ukraine Proschkina-Lavrenko (1949, Jousé (1951aJousé ( , 1955, Rudkevic et al (1957), Krotov andShibkova (1959, 1961), Rubina and Drosnes (1961), Sheshukova-Poretzkaya and Gleser (1964), Paramonova (1965), Gleser (1966Gleser ( , 1968Gleser ( , 1969Gleser ( , 1970, and Jousé and Gleser (1974). The late Eocene diatoms of the Kreyenhagen shale were described by Hanna (1931).…”