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


Class
 		Merostomata
Woodward, 1866
Horseshoe crabs, Merostomates		9
21
29		Families
Genera
Species		 
Taxom
 

Order
 		Eurypterida ♰
Burmeister, 1843
Eurypterids, Sea scorpions		7
19
27		Families
Genera
Species		 
Taxom
 

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


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


Genera for Ludlow
3 Genera with 8 Species
Acutiramus Ruedemann, 19551SpeciesTaxom
Erettopterus Salter, 19611SpeciesTaxom
Pterygotus Agassiz, 19556SpeciesTaxom


Species list for Ludlow
8 Species
Acutiramus floweri ♰ Kjellesvig-W..., 1955
Erettopterus marstoni ♰ Kjellesvig-W..., 1961
Pterygotus arcuatus ♰
Pterygotus australis ♰ Mccoy, 1899
Pterygotus denticulatus ♰ Kjellesvig-W..., 1961
Pterygotus lightbodyi ♰ Kjellesvig-W..., 1961
Pterygotus monroensis ♰ Sarle, 1902
Pterygotus waylandsmithi ♰ Kjellesvig-W..., 1955

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