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Taxonomy of Subfamily Mesonacinae


Class
 		Trilobita ♰
Walch, 1771
Trilobites		288
6303
23914		Families
Genera
Species

Order
 		Redlichiida ♰
Richter, 1932
37
307
1338		Families
Genera
Species

Suborder
 		Olenellina ♰
Walcott, 1890
8
89
422		Families
Genera
Species

Superfamily
 		Olenelloidea ♰
Walcott, 1890
2
49
332		Families
Genera
Species
FamilyOlenellidae ♰
Walcott, 1890
18
189		Genera
Species
SubfamilyMesonacinae ♰
1
12		Genus
Species
Subnodes of Mesonacinae
GenusMesonacis ♰
Walcott, 1885
12Species


Distribution and Species lists of Mesonacinae
Canada
1 Genus  2 SpeciesUSA
1 Genus  1 Species


Distribution on islands