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Beetles, Fossil. (1) |
Glacial epoch -- Agassiz, Lake. (1) |
Paleoclimatology -- Minnesota -- Moorhead. (1) |
Paleoclimatology -- North Dakota -- Fargo. (1) |
Paleoecology -- Minnesota -- Moorhead. (1) |
Paleoecology -- North Dakota -- Fargo. (1) |