| details |
Oligocene |
|
Canada(British Columbia) |
Arnold,C.A. A Tertiary Azolla from British Columbia. |
1955 |
| details |
Oligocene |
|
Canada(British Columbia) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 |
1958 |
| details |
Oligocene |
|
Canada(British Columbia) |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Middle Eocene |
Late Eocene |
Canada(British Columbia) |
Rouse,G.E. Plant microfossils from the Burrard Formation of Western British Columbia. |
1962 |
| details |
Middle Eocene |
|
Canada(British Columbia) |
Hills,L.V. et al. Azolla geneseana, n.sp., and revision of Azolla primaeva. |
1965 |
| details |
Middle Eocene |
|
Canada(British Columbia) |
Hills,L.V. et al. Azolla primaeva and its phylogenetic significance. |
1967 |
| details |
Middle Eocene |
|
Canada(British Columbia) |
Hills,L.V. et al. Potassium-Argon dating of some Lower Tertiary strata in British Columbia. |
1967 |
| details |
Eocene |
|
Nd |
Hall,J.W. A reappraisal of the megaspores of two Eocene species of Azolla. |
1969 |
| details |
Eocene |
|
Canada |
Hall,J.W. A new section of Azolla. |
1970 |
| details |
Eocene |
|
Canada(British Columbia) |
Hall,J.W. Cretaceous Salviniaceae. |
1974 |
| details |
Early Eocene |
|
Nd |
Fowler,K. Megaspores and Massulae of Azolla prisca from the Oligocene of the Isle of Wight. |
1975 |
| details |
Nd |
|
Nd |
Fowler,K. An escape mechanism for Spermatozoids in Azolla massulae. |
1975 |
| details |
Eocene |
|
Canada(British Columbia) |
Rouse,G.E. et al. Tertiary geology and palynology of the Quesnel area, British Columbia. |
1979 |
| details |
Eocene |
|
Canada(NWT,Mackenzie) |
Ioannides,N.S. et al. A preliminary palynological study of the Caribou Hills outcrop section along the MacKenzie River, District of MacKenzie. |
1980 |
| details |
Maastrichtian |
Messinian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Early Eocene |
Middle Eocene |
Canada(British Columbia) |
Rouse,G.E. et al. Palynology of Cretaceous and Tertiary strata of Georgia Basin, Southwestern British Columbia. (In: Frontier Geoscience Program Cordilleran and offshore Basins, British Columbia) |
1990 |
| details |
Miocene |
|
Canada(British Columbia) |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |