Checklist for Infraclass Palaeoptera Crampton, 1915 (Ancient winged insects)
and region Billett (Lawrence County, Illinois, USA)
List of families for Billett
1 Family width 2 Species
Genera for Billett
2 Genera with 2 Species
Species list for Billett
2 Species
Subnodes of Palaeoptera with occurrences in Billett
Links, sources and further information Palaeoptera at itis.gov
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