A new fertile Schizaeaceous fern from Middle Pennsylvanian Iowa coal balls
| Kaituhi matua: | |
|---|---|
| Ētahi atu kaituhi: | |
| Hōputu: | Pukapuka |
| Reo: | Ingarihi |
| I whakaputaina: |
Kansas
University of Kansas
1977.
|
| Rangatū: | University of Kansas science bulletin
v. 51, no. 9 |
| Ngā marau: |