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Checklist for Infraorder Orthosterni Pocock, 1911
and region Venezuela (Northern South America)


Class
 		Arachnida
Lamarck, 1801
Arachnids		186
895
2284		Families
Genera
Species		 
Taxom
 

Subclass
 		Dromopoda
Shultz, 1990
35
189
700		Families
Genera
Species		 
Taxom
 

Order
 		Scorpiones
C. L. Koch, 1837
Scorpion, Scorpions		5
20
273		Families
Genera
Species		 
Taxom
 

Suborder
 		Neoscorpionina
Thorell & Lindström, 1885
5
20
273		Families
Genera
Species		 
Taxom
 

Infraorder
 		Orthosterni
Pocock, 1911
5
20
273		Families
Genera
Species		 
Taxom
 


List of families for Venezuela
5 Families width 273 Species and 3 Subspecies
Buthidae C. L. Koch, 1837Arrowbreasted scorpions139SpeciesTaxom
Chactidae Reginald Inn..., 1893Fatclaw scorpions123SpeciesTaxom
Euscorpiidae Laurie, 1896Shorttail scorpions5SpeciesTaxom
Hormuridae Laurie, 18963SpeciesTaxom
Scorpionidae Pierre André..., 1802Largeclaw scorpions3SpeciesTaxom

Subnodes of Orthosterni with occurrences in Venezuela
SuperfamilyButhoidea
Koch, 1837
1
8
139		Family
Genera
Species
Taxom

SuperfamilyChactoidea
Pocock, 1893
2
10
128		Families
Genera
Species
Taxom

SuperfamilyScorpionoidea
Leach, 1815
2
2
6		Families
Genera
Species
Taxom