A Memoir on the extinct sloth tribe of North America Leidy, Joseph 1823-1891 creator text dcu Washington New York Smithsonian Institution Putnam 1855 monographic eng
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2 p. l., [3]-68 p., : xvi plates 33 cm. By Joseph Leidy. Sudocs number: SI 1.6:7. Sloths Mammals, Fossil Paleontology Q11 .S68 vol. 7, art. 5 SI 1.6:7 SI 1.6:7 Smithsonian contributions to knowledge ; [v. 7, art. 5] Smithsonian Institution Publication ; 72 s 13000032 DLC 820320 20260227111910.0 s 13000032