The monotremes and the palimpsest theory. Bulletin of the AMNH ; v. 88, article 1

Gregory, William K. (William King), 1876-Raven, Henry Cushier, 1889-1944.2005-10-062005-10-061947http://hdl.handle.net/2246/92052 p., 2 p. of plates : ill. ; 27 cm.Includes bibliographical references: p. 46-52.15863129 bytesapplication/pdfen-USQH1 .A4 vol.88, art.1, 1947Monotremes -- Origin.Mammals -- Evolution.The monotremes and the palimpsest theory. Bulletin of the AMNH ; v. 88, article 1text