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 .