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Checklist for Superfamily Pterygotioidea Clarke & Ruedemann, 1912
and region Canada (North America)


Class
 		Merostomata
Woodward, 1866
Horseshoe crabs, Merostomates		10
24
26		Families
Genera
Species		 
Taxom
 

Order
 		Eurypterida ♰
Burmeister, 1843
Eurypterids, Sea scorpions		6
17
23		Families
Genera
Species		 
Taxom
 

Superfamily
 		Pterygotioidea ♰
Clarke & Ruedemann, 1912
1
3
9		Family
Genera
Species		 
Taxom
 


List of families for Canada
1 Family width 9 Species
Pterygotidae Clarke & Rue..., 19129SpeciesTaxom


Genera for Canada
3 Genera with 9 Species
Acutiramus Ruedemann, 18592SpeciesTaxom
Erettopterus Salter, 18791SpeciesTaxom
Pterygotus Agassiz, 19536SpeciesTaxom


Species list for Canada
9 Species
Acutiramus cummingsi ♰ Grote & Pitt, 1875
Acutiramus macrophthalmus ♰ Hall, 1859
Erettopterus canadensis ♰ Dawson, 1879
Pterygotus (Pterygotus) atlanticus ♰
Pterygotus (Pterygotus) gaspensis ♰
Pterygotus anglicus ♰ Agassiz, 1844
Pterygotus canadensis ♰
Pterygotus cobbi ♰ var. juvenis..., 1912
Pterygotus gaspesiensis ♰ Russell, 1953

Subnodes of Pterygotioidea with occurrences in Canada
FamilyPterygotidae ♰
Clarke & Ruedemann, 1912
3
9		Genera
Species
Taxom