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Checklist for Order Trigonotarbida Petrunkevitch, 1949 (Trigonotarbids)
and region Butler County (Pennsylvania, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		30
44
48		Families
Genera
Species		 
Taxom
 

Subclass
 		Micrura
Ehrenberg, 1831
27
41
44		Families
Genera
Species		 
Taxom
 

Infraclass
 		Megoperculata
Börner, 1902
16
26
34		Families
Genera
Species		 
Taxom
 

Order
 		Trigonotarbida ♰
Petrunkevitch, 1949
Trigonotarbids		1
1
1		Family
Genus
Species		 
Taxom
 


List of families for Butler County (Pennsylvania)
1 Family width 1 Species
Palaeocharinidae Hirst, 19231SpeciesTaxom


Genera for Butler County (Pennsylvania)
1 Genera with 1 Species
Gigantocharinus Shear, 20001SpeciesTaxom


Species list for Butler County (Pennsylvania)
1 Species
Gigantocharinus szatmaryi ♰ W. A. Shear, 2000

Subnodes of Trigonotarbida with occurrences in Butler County (Pennsylvania)
FamilyPalaeocharinidae ♰
Hirst, 1923
1
1		Genus
Species
Taxom



Links, sources and further information
Trigonotarbida at irmng.org