| Type | Article |
| Authors(s) | Pryer KM. |
| Year | 1999 |
| Title | Phylogeny of marsileaceous ferns and relationships of the fossil Hydropteris pinnata reconsidered. |
| Periodical | International Journal of Plant Sciences |
| Volume | 160 |
| Page(s) | 931–954 |
| Type | Article |
| Authors(s) | Pryer KM. |
| Year | 1999 |
| Title | Phylogeny of marsileaceous ferns and relationships of the fossil Hydropteris pinnata reconsidered. |
| Periodical | International Journal of Plant Sciences |
| Volume | 160 |
| Page(s) | 931–954 |