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Checklist for Order Agnostida Salter, 1864
and region Illinois (USA)


Class
 		Trilobita ♰
Walch, 1771
Trilobites		39
120
124		Families
Genera
Species		 
Taxom
 

Order
 		Agnostida ♰
Salter, 1864
2
3
5		Families
Genera
Species		 
Taxom
 


List of families for Illinois
2 Families width 5 Species
Peronopsidae Westergård, 1936Peronopsids2SpeciesTaxom
Ptychagnostidae Kobayashi, 19393SpeciesTaxom


Genera for Illinois
3 Genera with 5 Species
Peronopsis Hawle & Corda, 18692SpeciesTaxom
Ptychagnostus Jaekel, 19392SpeciesTaxom
Triplagnostus Howell, 18691SpeciesTaxom


Species list for Illinois
5 Species
Peronopsis (Peronopsis) amplaxis ♰ ROBISON, 1982
Peronopsis fallax ♰ LINNARSSON, 1869
Ptychagnostus intermedius ♰ Tullberg, 1880
Ptychagnostus seminula ♰ Whitehouse, 1939
Triplagnostus gibbus ♰ LINNARSSON, 1869

Subnodes of Agnostida with occurrences in Illinois
SuborderAgnostina ♰
Salter, 1864
2
3
5		Families
Genera
Species
Taxom



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