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Checklist for Family Hammatocnemidae
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
 
FamilyHammatocnemidae ♰
1
1		Genus
Species		 
Taxom
 


Genera for Arkansas
1 Genera with 1 Species
Sphaerexochus Beyrich, 19801SpeciesTaxom


Species list for Arkansas
1 Species
Sphaerexochus glaber ♰ Holloway, 1980


Links, sources and further information
Hammatocnemidae at gbif.org
Hammatocnemidae at irmng.org