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Checklist for Family Ptychagnostidae Kobayashi, 1939
and region Labrador (Newfoundland and Labrador, Canada)


Class
 
Trilobita ♰
Walch, 1771
Trilobites
48
97
150
Families
Genera
Species
 
Taxom
 

Order
 
Agnostida ♰
Salter, 1864
10
18
25
Families
Genera
Species
 
Taxom
 

Suborder
 
Agnostina ♰
Salter, 1864
9
17
24
Families
Genera
Species
 
Taxom
 

Superfamily
 
Agnostoidea ♰
M´Coy, 1849
9
17
24
Families
Genera
Species
 
Taxom
 
FamilyPtychagnostidae ♰
Kobayashi, 1939
2
5
Genera
Species
 
Taxom
 


Genera for Labrador
2 Genera with 5 Species
Ptychagnostus Jaekel, 19394SpeciesTaxom
Triplagnostus Howell, 18691SpeciesTaxom


Species list for Labrador
5 Species
Ptychagnostus (Ptychagnostus) fissus ♰ Lundgren, 1879
Ptychagnostus aculeatus ♰ Angelin, 1851
Ptychagnostus atavus ♰ Tullberg, 1880
Ptychagnostus seminula ♰ Whitehouse, 1939
Triplagnostus gibbus ♰ LINNARSSON, 1869


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