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Checklist for Order Ptychopariida Swinnerton, 1915
and region Placer County (Eastern California, California, USA)


Class
 
Trilobita ♰
Walch, 1771
Trilobites
14
24
12
Families
Genera
Species
 
Taxom
 

Order
 
Ptychopariida ♰
Swinnerton, 1915
2
6
6
Families
Genera
Species
 
Taxom
 


List of families for Placer County
2 Families width 6 Species
Alokistocaridae Resser, 19394SpeciesTaxom
Ptychopariidae Matthew, 18872SpeciesTaxom


Genera for Placer County
6 Genera with 6 Species
Amecephalus Walcott, 19521SpeciesTaxom
Mexicella LOCHMAN, 19163SpeciesTaxom
Onchocephalites Rasetti, 1957
0SpeciesTaxom
Pachyaspis Resser, 1939
0SpeciesTaxom
Plagiura Resser, 19791SpeciesTaxom
Volocephalina PALMER, 19791SpeciesTaxom


Species list for Placer County
6 Species
Amecephalus arrojosensis ♰ LOCHMAN, 1952
Mexicella mexicana ♰ LOCHMAN, 1948
Mexicella robusta ♰ SUNDBERG & M..., 2000
Mexicella stator ♰ Walcott, 1916
Plagiura minor ♰ Palmer, 1979
Volocephalina connexa ♰ Palmer, 1979

Subnodes of Ptychopariida with occurrences in Placer County
SuborderPtychopariina ♰
Richter, 1932
2
6
6
Families
Genera
Species

Taxom



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