| original |
Early Cretaceous |
|
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1963 |
| original |
Aptian |
Albian |
USSR(Ukrainian SSR) |
Voronova,M.A. Early Cretaceous miospores of the Ukraine |
1984 |
| original |
Early Cenomanian |
Middle Cenomanian |
France(Dordogne) |
Fechner,G.G. et al. Sedimentology, paleontology and palynology of the Cenomanian deposits North of Simeyrols, Dodogne France |
1989 |
| original |
Nd |
|
Nd |
Burden,E.T. et al. Illustrated key to genera of Lower Cretaceous terrestrial palynomorphs, (excluding megaspores), of Western Canada. (Stratigraphic ranges and sample locations taken from E.T.Burden,1982 - Lower Cretaceous terrestrial palynomorph biostratigraphy of the McMurray Formation, northeastern Alberta, Unpub.Phd Thesis) |
1989 |