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		Cooksonia pertonii
		
				
		Cooksonia pertonii W.H. Lang Philos. Trans., Ser. B, 1937, 227(544): 288.  7 Jun 1937		
				
		
		
			- Name
- Cooksonia pertonii
- Rank
- Species
- Original spelling
- pertoni
- Generic Name
- 	[Genus] Cooksonia
	
- Authors (Pub.)
- 		Lang W. H.
			 
	
- Publication
- 	On the Plant-Remains from the Downtonian of England and Wales [1937/6]
	
- Journal
- 	Philosophical transactions of the Royal Society of London
	
- Annee/Jahrgang
- 1937
- Volume
- 227
- Issue
- 544
- Page number
- 288
- Year
- 1937
- Parent Taxon
- 	[Genus] Cooksonia
	
- Stratigraphy
- Pridoli
- Location
- Perton Lane Quarry, near Stoke Edith, Herefordshire, U.K.
- Paleoregion
- Laurussia (Avalonia)
Data for Not defined
- Repository
- Natural History Museum, London, U.K.
- Repository Number
- Lang no. 1242/V58011 (Lang 1937, pl. VIII,
fig. 8); Lang no. 124Y/V58008 (Lang 1937, pl. VIII, fig.
7); Lang no. 124X/V58007 (Lang 1937,
pl. VIII, fig. 12); Lang no. 261A/V58027
(Lang 1937, pl. IX, fig. 27); Lang no. 124F/V58006 (Lang 1937, pl. VIII,
fig. 6); Lang no. 124 C (Lang 1937, pl. VIII, fig. 4); Lang 92
G/V58004 (Lang 1937, pl. IX, fig. 22); Lang no. 92E (Lang
1937, pl. IX, fig. 21); Lang no. 239C/V58025 (Lang 1937,
pl. IX, fig. 24).
- Diagnosis
- Stems from 1.5 mm.–0.25 mm. wide. Sporangia considerably wider than high, 2 mm. × 1 mm. but exhibiting considerable range in size. Spores yellow, smooth, 32μ (25μ–37.5μ), developed in tetrads, with tri-radiate marking.
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