Back
		Dryopteris obscura
		
				
		Dryopteris obscura E.W. Berry Proc. U.S. Natl. Mus., 72(2719, Art. 23): 5.  19 Dec 1927		
				
		
		
			- Name
 
- Dryopteris obscura
 
- Rank
 
- Species
 
- Generic Name
 
- 	[Genus] Dryopteris
	
 
- Replaced Name
 
- 	Gleichenia obscura
	
 
- Authors (Pub.)
 
- 		Berry E. W.
			 
	
 
- Publication
 
- 	The flora of the Esmeralda formation in western Nevada [1927/12]
	
 
- Journal
 
- 	Proceedings of the United States National Museum
	
 
- Volume
 
- 72
 
- Issue
 
- 2719, Art. 23
 
- Page number
 
- 5
 
- Year
 
- 1927
 
- Fossil Status
 
- foliage
 
- Stratigraphy
 
- Langhian
 
- Strat. comment
 
- Esmeralda Formation = K-Ar age on glass 15.6 +/-0.5 Ma
 
- Location
 
- 3.8 kilometers northeast of Emigrant Peak, Nevada, USA
 
- Paleoregion
 
- America (North)