American Museum of Natural History. Expedition to the White River Beds of the Big Badlands of South Dakota (1841)

Fifth expedition to the Big Badlands region near Scenic, S.D.

It was led by Albert Thomson, Walter Granger, and Edwin H. Colbert who also participated in research resulting in the discovery of small Oligocene mammals, including a Hyaenodon.

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2016-08-15 08:08:02 pm

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2016-08-15 08:08:02 pm

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