| original |
Early Turonian |
Coniacian |
Utah |
May,F.E. A survey of palynomorphs from several coal-bearing horizons of Utah. |
1972 |
| original |
Turonian |
Early Campanian |
Utah |
May,F.E. A survey of palynomorphs from several coal-bearing horizons of Utah. |
1972 |
| original |
Campanian |
Montian |
Utah |
May,F.E. A survey of palynomorphs from several coal-bearing horizons of Utah. |
1972 |
| original |
Maastrichtian |
Danian |
Utah |
May,F.E. A survey of palynomorphs from several coal-bearing horizons of Utah. |
1972 |
| original |
Turonian |
Early Senonian |
New Jersey |
Groot,J.J. et al. Plant microfossils and age of the Raritan, Tuscaloosa and Magothy Formations of the eastern United States. |
1961 |
| original |
Early Eocene |
|
Arkansas |
Jones,E.L. Plant microfossils of the Laminated sediments of the Lower Eocene Wilcox Group in South-Central Arkansas. |
1961 |