| details |
Late Cretaceous |
|
Wyoming |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Late Cretaceous |
|
Nd |
Konijnenburg-Cittert,J.H.A.Van Diversification of spores in fossil and extant Schizaeaceae. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |
| details |
Late Cretaceous |
|
Nd |
Konijnenburg-Cittert,J.H.A.Van Diversification of spores in fossil and extant Schizaeaceae. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |
| details |
Cenomanian |
|
Wyoming |
Dettmann,M.E. et al. Phylogeny and biogeography of Ruffordia, Mohria and Anemia (Schizaeaceae) and Ceratopteris (Pteridaceae): Evidence from in situ, and dispersed spores. |
1992 |
| details |
Cretaceous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Late Cretaceous |
|
Wyoming |
Andrews,H.N. et al. On the flora of the Frontier Formation of Southwestern Wyoming. |
1941 |