| details |
Recent |
|
Nd |
Knox,E.M. The spores of Pteridophyta, with observations on microspores in Coals of Carboniferous age. |
1939 |
| details |
Recent |
|
North America |
Selling,O.H. Studies in the recent and fossil species of Schizaea, with particular reference to their spore characters |
1944 |
| details |
Campanian |
Maastrichtian |
USSR(Yamalo-Nenets) |
Bondarenko,N.M. Palynological basis of stratigraphic differential on of Upper Cretaceous deposits discovered in bore holes from drill cores of the Ob Bay District. (In: Paleontology and Biostratigraphy of the Soviet Arctic. #2. N.A.Shvedov, editor) |
1961 |
| details |
Late Aptian |
|
Virginia |
Skog,J.E. The relationship of the fossil fern Schizaeopsis Berry to modern genera in the Schizaeaceae |
1993 |
| details |
Recent |
|
USA |
Playford,G. et al. Spores. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |