Simpson, George Gaylord, 1902-Scarritt Patagonian Expedition 1930-1931)2005-10-062005-10-061932http://hdl.handle.net/2246/29939 p. : ill. ; 24 cm.Includes bibliographical references (p. 9).1029768 bytesapplication/pdfen-USQL1 .A436 no.530, 1932Proteodidelphys praecursor.Archaeoplus incipiens.Mammals, Fossil -- Argentina.Mammals, Fossil -- South America.Paleontology -- Cretaceous -- Argentina.Paleontology -- Cretaceous -- South America.Paleontology -- Tertiary -- Argentina.Paleontology -- Tertiary -- South America.Paleontology -- Argentina.Paleontology -- South America.The supposed occurrences of Mesozoic mammals in South America. American Museum novitates ; no.530Mesozoic mammals in South Americatext