Matthew, William Diller, 1871-1930.Couto, Carlos de Paula.Simpson, George Gaylord, 1902-2005-10-062005-10-061959http://hdl.handle.net/2246/196956 p., 42 p. of plates : ill., port. ; 27 cm.Includes bibliographical references (p. 55-56).Foreward / George Gaylord Simpson -- Introduction -- Systematics. Megalocnus Leidy, 1868. Megalocnus rodens rodens Leidy, 1868. Megalocnus rodens casimbae Matthew (in schedis), new subspecies. Megalocnus ursulus Matthew (in schedis), new species. Mesocnus Matthew, 1919. Mesocnus browni Matthew, 1931. Mesocnus torrei Matthew, 1931. Acratocnus Anthony, 1916. Acratocnus antillensis (Matthew, 1931). Microcnus Matthew, 1919. Microcnus gliriformis Matthew, 1931 -- Affinities of the Cuban ground sloths -- Appendix: Note on biometry and systematics / George Gaylord Simpson.50777721 bytesapplication/pdfen-USQH1 .A4 vol.117, art.1, 1959Xenarthra, Fossil -- Cuba.Ground sloths -- Cuba.Mammals, Fossil -- Cuba.Paleontology -- Quaternary -- Cuba.Paleontology -- Cuba.text