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Checklist for Suborder Asaphina Fortey & Chatterton, 1988
and region Box Elder County (Utah, USA)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		16
31
25		Families
Genera
Species		 
Taxom
 

Order
 		Asaphida ♰
Salter, 1864
2
6
5		Families
Genera
Species		 
Taxom
 

Suborder
 		Asaphina ♰
Fortey & Chatterton, 1988
2
6
5		Families
Genera
Species		 
Taxom
 


List of families for Box Elder County
2 Families width 5 Species
Asaphidae Burmeister, 18434SpeciesTaxom
Nileidae Angelin, 18541SpeciesTaxom


Genera for Box Elder County
6 Genera with 5 Species
Kirkella Kobayashi, 1942
0SpeciesTaxom
Lachnostoma Ross, 19511SpeciesTaxom
Poronileus FORTEY, 19751SpeciesTaxom
Ptychocephalus accepted as ..., 19511SpeciesTaxom
Symphysurus Goldfuss, 18841SpeciesTaxom
Trigonocerca Ross, 19511SpeciesTaxom


Species list for Box Elder County
5 Species
Lachnostoma latucelsum ♰ Ross, 1951
Poronileus isoteloides ♰ FORTEY, 1975
Ptychocephalus declevita ♰ Ross, 1951
Symphysurus goldfussi ♰ Walcott, 1884
Trigonocerca typica ♰ Ross, 1951

Subnodes of Asaphina with occurrences in Box Elder County
SuperfamilyAsaphoidea ♰
Burmeister, 1843
1
5
4		Family
Genera
Species
Taxom

SuperfamilyCyclopygoidea ♰
Raymond, 1925
1
1
1		Family
Genus
Species
Taxom