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Arthopods (5) |
Coal balls (5) |
Cones (Botany) (5) |
Conifers, Fossil (5) |
Cordaites (5) |
Desmoinian North American Stage (Desmoinesian) (5) |
Geology, Strategraphic--Carboniferous (5) |
Geology, Stratigraphic--Pennsylvanian (5) |
Mature Cone (5) |
Pollen Mass (5) |