Order Edentata Author James H. Honacki Author Kenneth E. Kinman Author James W. Koeppl text 1982 Alien Press, Inc. & The Association of Systematics Collections Lawrence, Kansas, USA Editor James H. Honacki Editor Kenneth E. Kinman Editor James W. Koeppl Mammal Species of the World (1 st Edition) 52 57 book chapter 193506 10.5281/zenodo.7352995 fc9ccab4-22a3-420a-8aa3-02c6222f9b37 0-89327-235-3 7352995 Family Choloepidae REVIEWED BY: R. M. Wetzel (RMW). COMMENT: Formerly included in Bradypodidae ; see Patterson and Pascual, 1968, Q. Rev. BioL, 43:409-451; Hoffstetter, 1969 , Bull. Mus. Nat. Hist. Nat. Paris, ser. 2, 41:91-103. Webb, 1982, in Montgomery, ed., The evolution and ecology of sloths, anteaters and armadillos ( Mammalia, Xenarthra = Edentata ), Smithson. Inst. Press, Washington , D.C., places Choloepidae in Megalonychidae .