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Checklist for Subfamily Ptychopyginae BALASHOVA, 1964
and region Lower Ordovician (Ordovician)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		69
364
514		Families
Genera
Species		 
Taxom
 

Order
 		Asaphida ♰
Salter, 1864
17
134
175		Families
Genera
Species		 
Taxom
 

Suborder
 		Asaphina ♰
Fortey & Chatterton, 1988
16
128
169		Families
Genera
Species		 
Taxom
 

Superfamily
 		Asaphoidea ♰
Burmeister, 1843
2
60
111		Families
Genera
Species		 
Taxom
 
FamilyAsaphidae ♰
Burmeister, 1843
50
95		Genera
Species		 
Taxom
 
SubfamilyPtychopyginae ♰
BALASHOVA, 1964
1
1		Genus
Species		 
Taxom
 


Genera for Lower Ordovician
1 Genera with 1 Species
Paraptychopyge BALASHOVA, 19751SpeciesTaxom


Species list for Lower Ordovician
1 Species
Paraptychopyge disputa ♰ FORTEY, 1975