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Checklist for Family Norwoodiidae Walcott, 1916
and region Texas (USA)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		70
191
200		Families
Genera
Species		 
Taxom
 

Order
 		Ptychopariida ♰
Swinnerton, 1915
22
63
56		Families
Genera
Species		 
Taxom
 

Suborder
 		Ptychopariina ♰
Richter, 1932
19
52
47		Families
Genera
Species		 
Taxom
 

Superfamily
 		Ptychoparioidea ♰
Matthew, 1887
19
52
47		Families
Genera
Species		 
Taxom
 
FamilyNorwoodiidae ♰
Walcott, 1916
3
2		Genera
Species		 
Taxom
 


Genera for Texas
3 Genera with 2 Species
Holcacephalus Resser, 1938
0SpeciesTaxom
Norwoodia Walcott, 19161SpeciesTaxom
Xenocheilos Wilson, 19491SpeciesTaxom


Species list for Texas
2 Species
Norwoodia tenera ♰ Walcott, 1916
Xenocheilos minutum ♰ Wilson, 1949


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