| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| details |
Late Eocene |
|
Texas |
Gennett,J.A. et al. Changes in floral composition with depositional environment in Texas Jackson Group Lignites |
1986 |
| details |
Middle Eocene |
|
Texas |
Jones,J.G. et al. Palynology of the type section of the Middle Eocene Stone City Formation, Burlson County, Texas. |
1988 |
| details |
Ypresian |
Bartonian |
California |
Frederiksen,N.O. Eocene sporomorph biostratigraphy of Southern California |
1989 |