| details |
Middle Maastrichtian |
Late Maastrichtian |
North Dakota |
Artzner,D.G. Palynology of a Volcanic Ash in the Fox Hills Formation, (Maestrichtian), of Emmons, Morton, and Sioux Counties, North Dakota. |
1974 |
| details |
Late Triassic |
|
Spitsbergen |
Smith,D.G. Late Triassic pollen and spores from the Kapp Toscana Formation, Hopen, Svalbard. A preliminary account. |
1974 |
| details |
Late Triassic |
|
Arizona |
Ash,S.R. Late Triassic plants from the Chinle Formation in northeastern Arizona. |
1972 |
| details |
Sparnacian |
|
Hungary |
Kedves,M. Palynologic investigations from the Dorog Basin. II. |
1961 |
| details |
Nd |
|
Nd |
Scott,R.A. Pollen of Ephedra from the Chinle Formation, (Upper Triassic), and the genus Equisetosporites. |
1960 |
| details |
Late Triassic |
|
Arizona |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Late Cretaceous |
|
Canada(Alberta) |
Radforth,N.W. et al. The classification of recently discovered Cretaceous plant microfossils of potential importance to the stratigrphy of Western Canada. |
1953 |
| details |
Late Triassic |
|
Arizona |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| original |
Late Triassic |
|
Arizona |
Daugherty,L.H. The Upper Triassic flora of Arizona. |
1941 |