Checklist for Infraclass Palaeoptera Crampton, 1915 (Ancient winged insects) and region Washington (Armstrong County, Pennsylvania, USA)
List of families for Washington (Armstrong County Pennsylvania) 5 Families width 9 Species
Genera for Washington (Armstrong County Pennsylvania) 7 Genera with 9 Species
Species list for Washington (Armstrong County Pennsylvania) 9 Species
Subnodes of Palaeoptera with occurrences in Washington (Armstrong County Pennsylvania)
Links, sources and further information Palaeoptera at itis.gov
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