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Checklist for Subfamily Mesonacinae
and region Canada (North America)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		139
842
1328		Families
Genera
Species		 
Taxom
 

Order
 		Redlichiida ♰
Richter, 1932
10
28
70		Families
Genera
Species		 
Taxom
 

Suborder
 		Olenellina ♰
Walcott, 1890
6
22
61		Families
Genera
Species		 
Taxom
 

Superfamily
 		Olenelloidea ♰
Walcott, 1890
2
16
46		Families
Genera
Species		 
Taxom
 
FamilyOlenellidae ♰
Walcott, 1890
7
25		Genera
Species		 
Taxom
 
SubfamilyMesonacinae ♰
1
2		Genus
Species		 
Taxom
 


Genera for Canada
1 Genera with 2 Species
Mesonacis Walcott, 02SpeciesTaxom


Species list for Canada
2 Species
Mesonacis vermontanus ♰ Hall, 1859
Mesonacis wileyi ♰