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Checklist for Superfamily Pterygotioidea Clarke & Ruedemann, 1912
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
 

Superfamily
 		Pterygotioidea ♰
Clarke & Ruedemann, 1912
1
1
1		Family
Genus
Species		 
Taxom
 


List of families for Pennsylvania
1 Family width 1 Species
Pterygotidae Clarke & Rue..., 19121SpeciesTaxom


Genera for Pennsylvania
1 Genera with 1 Species
Erettopterus Salter, 19121SpeciesTaxom


Species list for Pennsylvania
1 Species
Erettopterus globiceps ♰ Clarke & Rue..., 1912

Subnodes of Pterygotioidea with occurrences in Pennsylvania
FamilyPterygotidae ♰
Clarke & Ruedemann, 1912
1
1		Genus
Species
Taxom