| details |
Clarendonian |
|
Arizona |
Heusser,L.E. et al. Late Tertiary and Pleistocene vegetation history; 20my to 20ky. II. 1. North America. (In: Vegetation History. B.Huntley et al, editor) |
1988 |
| details |
Late Pliocene |
|
California |
Axelrod,D.I. et al. Late Pliocene floras East of the Sierra Nevada |
1960 |
| details |
Clarendonian |
|
Nevada |
Heusser,L.E. et al. Late Tertiary and Pleistocene vegetation history; 20my to 20ky. II. 1. North America. (In: Vegetation History. B.Huntley et al, editor) |
1988 |
| details |
Late Tertiary |
|
North America |
Leopold,E.B. Late Cenozoic palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |