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Checklist for Infraorder Orthosterni Pocock, 1911
and region Paleozoic (Phanerozoic)


Class
 		Arachnida
Lamarck, 1801
Arachnids		108
191
278		Families
Genera
Species		 
Taxom
 

Subclass
 		Dromopoda
Shultz, 1990
49
62
91		Families
Genera
Species		 
Taxom
 

Order
 		Scorpiones
C. L. Koch, 1837
Scorpion, Scorpions		33
42
54		Families
Genera
Species		 
Taxom
 

Suborder
 		Neoscorpionina
Thorell & Lindström, 1885
2
5
5		Families
Genera
Species		 
Taxom
 

Infraorder
 		Orthosterni
Pocock, 1911
2
2
1		Families
Genera
Species		 
Taxom
 


List of families for Paleozoic
1 Family width 1 Species
Buthidae C. L. Koch, 1837Arrowbreasted scorpions0SpeciesTaxom


Genera for Paleozoic
1 Genera with 1 Species
Palaeothele Selden, 2000
0SpeciesTaxom

Subnodes of Orthosterni with occurrences in Paleozoic
SuperfamilyButhoidea
Koch, 1837
1
1
0		Family
Genus
Species
Taxom