Speirseopteris orbiculata gen. et sp. nov. (Thelypteridaceae), a Derived Fossil Filicalean from the Paleocene of Western North America
| Image |  |
|---|---|
| Description | scientific article published in 2006 |
| Author/s |
author: Gar W. Rothwell Ruth A. Stockey |
| Publication date | May 2006 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |