| details |
Middle Eocene |
|
California |
Kimyai,A. Eocene palynomorphs from the Black Diamond Mines regional preserve, Contra Costa County, California. |
1993 |
| original |
Lutetian |
Bartonian |
California |
Frederiksen,N.O. Middle Eocene palynomorphs from San Diego, California. Part II: Angiosperm pollen and miscellanea. |
1983 |
| details |
Late Paleocene |
|
Wyoming |
Pocknall,D.T. et al. Palynology of Coal zones of the Tougue River Member (Upper Paleocene) of the Fort Union Formation, Powder River Basin, Montana and Wyoming |
1996 |