| original |
Lutetian |
Bartonian |
California |
Frederiksen,N.O. Middle Eocene palynomorphs from San Diego, California. Part II: Angiosperm pollen and miscellanea. |
1983 |
| details |
Late Sabinian |
Claiborne |
USA(Gulf Coast) |
Frederiksen,N.O. Sporomorph biostratigraphy, floral changes, and paleoclimatology, Eocene and Earliest Oligocene of the eastern Gulf Coast. |
1988 |
| details |
Ypresian |
Priabonian |
California |
Frederiksen,N.O. Eocene sporomorph biostratigraphy of Southern California |
1989 |
| details |
Ypresian |
Priabonian |
California |
Frederiksen,N.O. Eocene sporomorph biostratigraphy of Southern California |
1989 |
| details |
Early Eocene |
Middle Eocene |
Alaska(North Slope) |
Frederiksen,N.O. et al. Palynology of Eocene strata in the Sagavanirktok and Canning Formations on the North Slope of Alaska. |
2002 |
| details |
Miocene |
|
Argentina(Salta) |
Herbst,R. et al. Synthesis of the Miocene paleontology of the Calchaqu Valleys, Northwestern Argentina. |
2000 |
| details |
Miocene |
|
|
Herbst,R. et al. Synthesis of the Miocene paleontology of the Calchaqu Valleys, Northwestern Argentina. |
2000 |
| details |
Miocene |
|
Argentina(Catamarca) |
Herbst,R. et al. Synthesis of the Miocene paleontology of the Calchaqu Valleys, Northwestern Argentina. |
2000 |