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Checklist for Family Hammatocnemidae
and region Wenlock (Silurian)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		28
167
436		Families
Genera
Species		 
Taxom
 

Order
 		Phacopida ♰
Salter, 1864
13
79
219		Families
Genera
Species		 
Taxom
 

Suborder
 		Cheirurina ♰
Harrington, 1957
4
36
106		Families
Genera
Species		 
Taxom
 

Superfamily
 		Cheiruroidea ♰
4
36
106		Families
Genera
Species		 
Taxom
 
FamilyHammatocnemidae ♰
3
11		Genera
Species		 
Taxom
 


Genera for Wenlock
3 Genera with 11 Species
Onycopyge Woodward, 18801SpeciesTaxom
Sphaerexochus Beyrich, 08SpeciesTaxom
Youngia Lindström, 19842SpeciesTaxom


Species list for Wenlock
11 Species
Onycopyge liversidgei ♰ Woodward, 1880
Sphaerexochus calvus ♰ Mc Coy, 1846
Sphaerexochus centeo ♰
Sphaerexochus dimorphus ♰ WHITTINGTON ..., 1953
Sphaerexochus glaber ♰ Holloway, 1980
Sphaerexochus johnstoni ♰ CHATTERTON, 1984
Sphaerexochus romingeri ♰ Hall, 1868
Sphaerexochus scabridus ♰ Angelin, 1854
Sphaerexochus seto ♰
Youngia brennardi ♰ Chatterton &..., 1984
Youngia steineri ♰ CHATTERTON, 1984


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