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Checklist for Superfamily Stylonuroidea Kjellesvig-Waering, 1959
and region Pennsylvania (USA)


Class
 		Merostomata
Woodward, 1866
Horseshoe crabs, Merostomates		12
21
20		Families
Genera
Species		 
Taxom
 

Order
 		Eurypterida ♰
Burmeister, 1843
Eurypterids, Sea scorpions		7
16
18		Families
Genera
Species		 
Taxom
 

Suborder
 		Stylonurina ♰
Diener, 1924
4
6
8		Families
Genera
Species		 
Taxom
 

Superfamily
 		Stylonuroidea ♰
Kjellesvig-Waering, 1959
1
2
4		Family
Genera
Species		 
Taxom
 


List of families for Pennsylvania
1 Family width 4 Species
Stylonuridae Diener, 19244SpeciesTaxom


Genera for Pennsylvania
2 Genera with 4 Species
Ctenopterus Clarke & Rue..., 18832SpeciesTaxom
Stylonurus Page, 02SpeciesTaxom


Species list for Pennsylvania
4 Species
Ctenopterus cestrotus ♰ Clarke, 1907
Ctenopterus lacoana ♰ Claypole, 1883
Stylonurus arnoldi ♰
Stylonurus beecheri ♰

Subnodes of Stylonuroidea with occurrences in Pennsylvania
FamilyStylonuridae ♰
Diener, 1924
2
4		Genera
Species
Taxom