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Checklist for Family Trinucleidae Hawle & Corda, 1847
and region Pennsylvania (USA)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		59
144
161		Families
Genera
Species		 
Taxom
 

Order
 		Asaphida ♰
Salter, 1864
10
26
21		Families
Genera
Species		 
Taxom
 

Suborder
 		Asaphina ♰
Fortey & Chatterton, 1988
9
24
17		Families
Genera
Species		 
Taxom
 

Superfamily
 		Trinucleioidea ♰
Delo, 1935
2
3
4		Families
Genera
Species		 
Taxom
 
FamilyTrinucleidae ♰
Hawle & Corda, 1847
1
3		Genus
Species		 
Taxom
 


Genera for Pennsylvania
1 Genera with 3 Species
Cryptolithus Green, 18323SpeciesTaxom


Species list for Pennsylvania
3 Species
Cryptolithus bellulus ♰ Ulrich, 1878
Cryptolithus recurvus ♰ Bassler, 1920
Cryptolithus tesselatus ♰ Green, 1832


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