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Checklist for Superfamily Pterygotioidea Clarke & Ruedemann, 1912
and region Wenlock (Silurian)


Class
 		Merostomata
Woodward, 1866
Horseshoe crabs, Merostomates		7
18
31		Families
Genera
Species		 
Taxom
 

Order
 		Eurypterida ♰
Burmeister, 1843
Eurypterids, Sea scorpions		6
16
30		Families
Genera
Species		 
Taxom
 

Superfamily
 		Pterygotioidea ♰
Clarke & Ruedemann, 1912
1
2
8		Family
Genera
Species		 
Taxom
 


List of families for Wenlock
1 Family width 8 Species
Pterygotidae Clarke & Rue..., 19128SpeciesTaxom


Genera for Wenlock
2 Genera with 8 Species
Erettopterus Salter, 18833SpeciesTaxom
Pterygotus Agassiz, 19645SpeciesTaxom


Species list for Wenlock
8 Species
Erettopterus carinatus ♰
Erettopterus holmi ♰ Størmer, 1934
Erettopterus laticauda ♰ Schmidt, 1883
Pterygotus canadensis ♰
Pterygotus grandidentatus ♰ Kjellesvig-W..., 1961
Pterygotus holmi ♰
Pterygotus impactus ♰
Pterygotus marylandicus ♰ Kjellesvig-W..., 1964

Subnodes of Pterygotioidea with occurrences in Wenlock
FamilyPterygotidae ♰
Clarke & Ruedemann, 1912
2
8		Genera
Species
Taxom