Sporomorph biostratigraphy, floral changes, and paleoclimatology, Eocene and earliest Oligocene of the eastern Gulf Coast /

Autor Frederiksen, Norman O., 1932-2020
Vydáno 1988

Pollen zonation and correlation of Maastrichtian marine beds and associated strata, Ocean Point dinosaur locality, North Slope, Alaska /

Autor Frederiksen, Norman O., 1932-2020
Vydáno 1991

Sporomorphs from the Jackson Group (upper Eocene) and adjacent strata of Mississippi and western Alabama /

Autor Frederiksen, Norman O., 1932-2020
Vydáno 1980

Stratigraphic, paleoclimatic, and paleobiogeographic significance of Tertiary sporomorphs from Massachusetts /

Autor Frederiksen, Norman O., 1932-2020
Vydáno 1984