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Checklist for Superfamily Cheiruroidea
and region Arkansas (USA)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		31
58
49		Families
Genera
Species		 
Taxom
 

Order
 		Phacopida ♰
Salter, 1864
9
15
18		Families
Genera
Species		 
Taxom
 

Suborder
 		Cheirurina ♰
Harrington, 1957
4
7
7		Families
Genera
Species		 
Taxom
 

Superfamily
 		Cheiruroidea ♰
4
7
7		Families
Genera
Species		 
Taxom
 


List of families for Arkansas
4 Families width 7 Species
Encrinuridae Angelin, 18540SpeciesTaxom
Cheiruridae Salter, 18644SpeciesTaxom
Hammatocnemidae1SpeciesTaxom
Staurocephalidae2SpeciesTaxom


Genera for Arkansas
7 Genera with 7 Species
Balizoma Holloway, 1980
0SpeciesTaxom
Cheirurus Beyrich, 03SpeciesTaxom
Deiphon Barrande, 01SpeciesTaxom
Encrinurus Emmrich, 1844
0SpeciesTaxom
Mackenziurus EDGECOMBE & ..., 1990
0SpeciesTaxom
Sphaerexochus Beyrich, 19801SpeciesTaxom
Staurocephalus Barrande, 02SpeciesTaxom


Species list for Arkansas
7 Species
Cheirurus niagarensis ♰ Hall, 1868
Cheirurus phollikodes ♰
Cheirurus prolixus ♰
Deiphon longifrons ♰
Sphaerexochus glaber ♰ Holloway, 1980
Staurocephalus lagena ♰
Staurocephalus oarion ♰

Subnodes of Cheiruroidea with occurrences in Arkansas
FamilyCheiruridae ♰
Salter, 1864
2
4		Genera
Species
Taxom

FamilyEncrinuridae ♰
Angelin, 1854
3
0		Genera
Species
Taxom

FamilyHammatocnemidae ♰
1
1		Genus
Species
Taxom

FamilyStaurocephalidae ♰
1
2		Genus
Species
Taxom