Incertae sedis Blechnaceae

Cladus: Eukaryota
Regnum: Plantae
Divisio: Pteridophyta
Subdivisio: Pterophyta
Classis: Pteridopsida
Ordo: Blechnales
Familia: Blechnaceae
Subfamiliae: incertae sedis
Genus: Trawetsia

References

* Smith, Selena Y., Stockey, Ruth A., Nishida, Harufumi & Rothwell, Gar W. (2006), "Trawetsia princetonensis gen. et sp. nov. (Blechnaceae): A Permineralized Fern from the Middle Eocene Princeton Chert" International Journal of Plant Sciences 167(3) Special Section: Evolution of Modern Ferns:711-719