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Now showing items 1-4 of 4

Mammalian fauna and correlation of the Paskapoo Formation of Alberta. American Museum novitates ; no. 268

Simpson, George Gaylord, 1902-; Brown, Barnum. (New York City : American Museum of Natural History, 1927)
Mammalian fauna of the Hell Creek Formation of Montana. American Museum novitates ; no. 267

Simpson, George Gaylord, 1902-; Brown, Barnum. (New York City : American Museum of Natural History, 1927)
Braincasts of two typotheres and a litoptern. American Museum novitates ; no.629

Simpson, George Gaylord, 1902-; Brown, Barnum.; Scarritt Patagonian Expedition 1930-1931) (New York City : The American Museum of Natural History, 1933)
A new mammalian fauna from the Fort Union of southern Montana. American Museum novitates ; no. 297

Simpson, George Gaylord, 1902-; Brown, Barnum.; Siegfriedt, J. C. F. (New York City : The American Museum of Natural History, 1928)

Now showing items 1-4 of 4