| details |
Lutetian |
Bartonian |
California |
Frederiksen,N.O. Middle Eocene palynomorphs from San Diego, California. Part II: Angiosperm pollen and miscellanea. |
1983 |
| details |
Middle Eocene |
Early Oligocene |
Mississippi |
Frederiksen,N.O. Middle Eocene palynomorphs from San Diego, California. Part II: Angiosperm pollen and miscellanea. |
1983 |
| details |
Claiborne |
Early Vicksburg |
USA(Gulf Coast) |
Frederiksen,N.O. Sporomorph biostratigraphy, floral changes, and paleoclimatology, Eocene and Earliest Oligocene of the eastern Gulf Coast. |
1988 |
| details |
Lutetian |
|
California |
Frederiksen,N.O. Eocene sporomorph biostratigraphy of Southern California |
1989 |
| details |
Late Cretaceous |
Tertiary |
Nd |
Frederiksen,N.O. Uppermost Cretaceous and Tertiary spores/Pollen biostratigraphy. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |