Category:Delaware River Formation
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Media in category "Delaware River Formation"
This category contains only the following file.
Categories:
- Geologic formations in New York (state)
- Devonian formations in New York (state)
- Fossil bearing geologic formations in New York (state)
- Devonian fossil bearing formations in the United States
- Geologic formations in Pennsylvania
- Devonian formations in Pennsylvania
- Fossil bearing geologic formations in Pennsylvania