| original |
Maastrichtian |
|
Montana |
Hall,J.W. A new genus of Salviniaceae and a new species of Azolla from the Late Cretaceous. |
1968 |
| details |
Late Cretaceous |
|
Montana |
Hall,J.W. Studies on fossil Azolla |
1969 |
| details |
Maastrichtian |
|
Montana |
Oltz,D.F. Numerical analyses of palynological data from Cretaceous and Early Tertiary sediments in East Central Montana. |
1969 |
| details |
Late Cretaceous |
|
Montana |
Hall,F.W. Notes on fossil Salviniaceae. |
1969 |
| details |
Cretaceous |
|
Nd |
Jain,R.K. Pre-Tertiary records of Salviniaceae. |
1971 |
| details |
Late Cretaceous |
Paleocene |
Montana |
Oltz,D.F. Cluster analyses of Late Cretaceous-Early Tertiary pollen and spores |
1971 |
| details |
|
|
Montana |
Hall,J.W. Cretaceous Salviniaceae. |
1974 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Maastrichtian |
|
Montana |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Nd |
|
Nd |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Nd |
|
Nd |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Late Maastrichtian |
|
North America |
Nichols,D.J. et al. Palynological evidence of effects of the terminal Cretaceous event on terrestrial floras in Western North America. (In: Extinction events in earth history. IGCP, Proceeding of Project 216. E.G.Kauffman and O.H.Walliser, editors) |
1990 |
| details |
Early Maestrichtian |
|
Nigeria |
Kumaran,K.P.N. et al. A reappraisal of Salviniaceous fossils and its implication on the age and depositional environment of Nkporo Shale of Calabar Flank, Nigeria |
1994 |
| details |
Cretaceous |
|
Nd |
Ramanujam,C.G.K. et al. Remain of Azollaceae from Late Albian of Cauvery Basin and their evolutionary significance. |
1996 |