| original |
Campanian |
|
Montana |
Hall,J.W. A new genus of Salviniaceae and a new species of Azolla from the Late Cretaceous. |
1968 |
| details |
Nd |
|
Nd |
Hall,F.W. Notes on fossil Salviniaceae. |
1969 |
| details |
Nd |
|
Nd |
Sweet,A.R. et al. Morphology, speciation, evolution and stratigraphic value of Azolla. |
1970 |
| details |
Cretaceous |
Early Paleocene |
Canada(Alberta) |
Sweet,A.R. et al. Evolution of Azolla and Azollopsis during the Upper Cretaceous and Lower Tertiary. |
1971 |
| details |
Late Cretaceous |
|
Canada(Alberta) |
Wall,J.H. et al. Paleoecology of the Bearpaw and contiguous Upper Cretaceous Formations in the C.P.O.G.Strathmore Well, Southern Alberta. |
1971 |
| details |
Cretaceous |
|
Nd |
Hall,J.W. et al. Ariadnaesporites and Glomerisporites, two Cretaceous megaspores of possible Salviniaceous affinity. |
1972 |
| details |
Nd |
|
Nd |
Hall,J.W. Cretaceous Salviniaceae. |
1974 |
| details |
Campanian |
Maastrichtian |
Nd |
Hall,J.W. Ariadnaesporites and Glomerisporites in the Late Cretaceous. |
1975 |
| details |
Campanian |
|
Nd |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Late Cretaceous |
|
Canada(Arctic) |
Sweet,A.R. Jurassic and Cretaceous megaspores. |
1979 |
| details |
Nd |
|
Nd |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Cretaceous |
|
Europe |
Knobloch,E. et al. Evolutionary significance of floristic changes in the northern Hemisphere during the reference to Central Europe |
1993 |
| details |
Late Cretaceous |
|
Canada(Saskatchewan) |
Batten,D.J. et al. Occurrence of dispersed seed cuticles and similar microfossils in mainly Cretaceous successions of the northern hemisphere. |
1995 |
| details |
Late Cretaceous |
|
Canada(Alberta) |
Batten,D.J. et al. Occurrence of dispersed seed cuticles and similar microfossils in mainly Cretaceous successions of the northern hemisphere. |
1995 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |