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Checklist for Family Ptychagnostidae Kobayashi, 1939
and region Canada (North America)


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

Order
 
Agnostida
Salter, 1864
18
69
126
Families
Genera
Species
 
Taxom
 

Suborder
 
Agnostina
Salter, 1864
13
53
109
Families
Genera
Species
 
Taxom
 

Superfamily
 
Agnostoidea
M´Coy, 1849
11
49
101
Families
Genera
Species
 
Taxom
 
FamilyPtychagnostidae
Kobayashi, 1939
7
16
Genera
Species
 
Taxom
 


Genera for Canada
7 Genera with 16 Species
Goniagnostus Howell, 19791SpeciesTaxom
Lejopyge Hawle & Corda, 19641SpeciesTaxom
Pentagnostus LERMONTOVA, 19361SpeciesTaxom
Ptychagnostus Jaekel, 19398SpeciesTaxom
Tomagnostella Kobayashi, 18511SpeciesTaxom
Tomagnostus Howell, 19021SpeciesTaxom
Triplagnostus Howell, 03SpeciesTaxom


Species list for Canada
16 Species
Goniagnostus oxytorus Öpik, 1979
Lejopyge calva ROBISON, 1964
Pentagnostus praecurrens Westergard, 1936
Ptychagnostus (Ptychagnostus) fissus Lundgren, 1879
Ptychagnostus aculeatus Angelin, 1851
Ptychagnostus atavus Tullberg, 1880
Ptychagnostus hybridus
Ptychagnostus intermedius Tullberg, 1880
Ptychagnostus praecurrens Westergård, 1936
Ptychagnostus punctuosus Angelin, 1851
Ptychagnostus seminula Whitehouse, 1939
Tomagnostella exsculpta Angelin, 1851
Tomagnostus perrugatus GRÖNWALL, 1902
Triplagnostus burgessensis
Triplagnostus gibbus LINNARSSON, 1869
Triplagnostus lomondensis


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