Checklist for Infraclass Megoperculata Börner, 1902 and region Jefferson (Berks County, Pennsylvania, USA)
List of families for Jefferson (Berks County) 3 Families width 3 Species
Genera for Jefferson (Berks County) 3 Genera with 3 Species
Species list for Jefferson (Berks County) 3 Species
Subnodes of Megoperculata with occurrences in Jefferson (Berks County)
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