| original |
Late Oligocene |
|
Vermont |
Traverse,A. Pollen analysis of the Brandon Lignite of Vermont. |
1955 |
| details |
Helvetian |
|
Hungary |
Simoncsics,P. Spore, pollen, and Moor types of the Miocene Brown area of Nograd.2. |
1970 |
| details |
Late Miocene |
|
New Jersey |
Rachele,L.D. Palynology of the Legler Lignite |
1974 |
| details |
Late Neogene |
|
Germany(Schleswig) |
Menke,B. Pliocene and Earliest Quaternary spore and pollen flora of Schleswig-Holstein. |
1976 |
| details |
Pliocene |
Early Pleistocene |
Colombia |
Hammen,T.Van Der et al. Late Tertiary and Pleistocene vegetation history; 20my to 20ky. II. 3. South America. (In: Vegetation History. B.Huntley et al, editor) |
1988 |
| details |
Oligocene |
|
Vermont |
Frederiksen,N.O. Late Cretaceous and Tertiary floras, vegetation and paleoclimates of New England. |
1989 |
| details |
Pleistocene |
|
South Carolina |
Weems,R.E. et al. A summary of selected stratigraphic occurrences of Neogene and Quaternary invertebrate faunas and microfloras in the Charleston, South Carolina, Area. (In: Studies related to the Charleston, South Carolina earthquake of 1886) |
1990 |
| details |
Early Miocene |
|
Vermont |
Traverse,A. Palynofloral geochronology of the Brandon Lignite of Vermont, USA. |
1994 |
| details |
Middle Miocene |
Pliocene |
Colombia |
Wijninga,V.M. Neogene ecology of the Salto de Tequendama Site, (2475 meter altitude, Cordillera Oriental, Colombia): The paleobotanical record of Montane and lowland forests. |
1996 |
| details |
Tortonian |
|
Louisiana |
Wrenn,J.H. et al. Palynologic age determination of the Catahoula Formation, Big Creek, Sicily Island, Louisiana. |
2003 |