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Checklist for Family Phylacteridae LUDVIGSEN & WESTROP in LUDVIGSEN & al, 1989
and region USA (North America)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		163
1368
3036		Families
Genera
Species		 
Taxom
 

Order
 		Ptychopariida ♰
Swinnerton, 1915
37
321
847		Families
Genera
Species		 
Taxom
 

Suborder
 		Ptychopariina ♰
Richter, 1932
33
282
757		Families
Genera
Species		 
Taxom
 

Superfamily
 		Ptychoparioidea ♰
Matthew, 1887
27
255
733		Families
Genera
Species		 
Taxom
 
FamilyPhylacteridae ♰
LUDVIGSEN & WESTROP in LUDVIGSEN & al, 1989
3
4		Genera
Species		 
Taxom
 


Genera for USA
3 Genera with 4 Species
Phylacterus Raymond, 19242SpeciesTaxom
Ponumia Hu, 1970
0SpeciesTaxom
Westonaspis Rasetti, 19702SpeciesTaxom


Species list for USA
4 Species
Phylacterus fraternus ♰
Phylacterus saylesi ♰ Raymond, 1924
Westonaspis laevifrons ♰ Rasetti, 1945
Westonaspis texana ♰ Longacre, 1970


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