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Checklist for Superorder Ephemeropteroidea Rohdendorf, 1968
and region Union (Union County, Oregon, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		42
70
85		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		42
70
85		Families
Genera
Species		 
Taxom
 

Infraclass
 		Palaeoptera
Crampton, 1915
Ancient winged insects		5
12
16		Families
Genera
Species		 
Taxom
 

Superorder
 		Ephemeropteroidea
Rohdendorf, 1968
1
1
1		Family
Genus
Species		 
Taxom
 


List of families for Union (Union County Oregon)
1 Family width 1 Species
Caenidae Newman, 1853Small square-gill mayflies1SpeciesTaxom


Genera for Union (Union County Oregon)
1 Genera with 1 Species
Caenis Stephens, 18611SpeciesTaxom


Species list for Union (Union County Oregon)
1 Species
Caenis (Caenis) amica Hagen, 1861Heterosporous ferns

Subnodes of Ephemeropteroidea with occurrences in Union (Union County Oregon)
OrderEphemeroptera
Hyatt & Arms, 1891
Mayflies, Mayflies Anglers Curse, Mayflies Greendrakes, Mayflies Olives Etc, mayfly, Shadflies		1
1
1		Family
Genus
Species
Taxom