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Checklist for Order Asaphida Salter, 1864
and region Butler (Freestone County, Texas, USA)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		1
1
0		Family
Genus
Species		 
Taxom
 

Order
 		Asaphida ♰
Salter, 1864
1
1
0		Family
Genus
Species		 
Taxom
 


List of families for Butler (Freestone County)
1 Family width 0 Species
Trinucleidae Hawle & Corda, 18470SpeciesTaxom


Genera for Butler (Freestone County)
1 Genera with 0 Species
Cryptolithus Green, 1832
0SpeciesTaxom

Subnodes of Asaphida with occurrences in Butler (Freestone County)
SuborderAsaphina ♰
Fortey & Chatterton, 1988
1
1
0		Family
Genus
Species
Taxom



Links, sources and further information
Asaphida at gbif.org
Asaphida at irmng.org