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Checklist for Infraorder Orthosterni Pocock, 1911
and region Holocene (Quaternary)


Class
 		Arachnida
Lamarck, 1801
Arachnids		36
60
67		Families
Genera
Species		 
Taxom
 

Subclass
 		Dromopoda
Shultz, 1990
8
9
9		Families
Genera
Species		 
Taxom
 

Order
 		Scorpiones
C. L. Koch, 1837
Scorpion, Scorpions		3
4
5		Families
Genera
Species		 
Taxom
 

Suborder
 		Neoscorpionina
Thorell & Lindström, 1885
3
4
5		Families
Genera
Species		 
Taxom
 

Infraorder
 		Orthosterni
Pocock, 1911
3
4
5		Families
Genera
Species		 
Taxom
 


List of families for Holocene
3 Families width 5 Species
Chactidae Reginald Inn..., 1893Fatclaw scorpions1SpeciesTaxom
Buthidae C. L. Koch, 1837Arrowbreasted scorpions3SpeciesTaxom
Scorpionidae Pierre André..., 1802Largeclaw scorpions1SpeciesTaxom


Genera for Holocene
4 Genera with 5 Species
Chactas Gervais, 20051SpeciesTaxom
Microcharmus Lourenço, 20091SpeciesTaxom
Palaeogrosphus Lourenço, 20122SpeciesTaxom
Scorpio Linnaeus, 18291SpeciesTaxom


Species list for Holocene
5 Species
Chactas pleistocenicus ♰ W. R. Lourenço, 2005
Microcharmus henderickxi ♰ W. R. Lourenço, 2009
Palaeogrosphus copalensis ♰ W. R. Lourenço, 1996
Palaeogrosphus jacquesi ♰ W. R. Lourenço, 2012
Scorpio schweiggeri ♰ Holl, 1829Beveled macoma

Subnodes of Orthosterni with occurrences in Holocene
SuperfamilyButhoidea
Koch, 1837
1
2
3		Family
Genera
Species
Taxom

SuperfamilyChactoidea
Pocock, 1893
1
1
1		Family
Genus
Species
Taxom

SuperfamilyScorpionoidea
Leach, 1815
1
1
1		Family
Genus
Species
Taxom