Williams, Ernest E. (Ernest Edward)Koopman, Karl F.Thorp, James.2005-10-062005-10-061951http://hdl.handle.net/2246/23709 p. : ill. ; 24 cm.Includes bibliographical references (p. 9).2314995 bytesapplication/pdfen-USQL1 .A436 no.1515, 1951Proechimys corozalus.Rodents, Fossil -- Puerto Rico -- Corozal Region.Mammals, Fossil -- Puerto Rico -- Corozal Region.Paleontology -- Pleistocene -- Puerto Rico -- Corozal Region.Paleontology -- Puerto Rico -- Corozal Region.A new fossil rodent from Puerto Rico. American Museum novitates ; no. 1515text