Hapalops
Ameghino, F. 1889. Contibucion al conocimiento de
los Mamiferos
fósiles de la
República
-------- 1891a. ?? Revista Argentina de Historia Natural, tome 1: 151-161. (type description, Hyperleptus, Menilaus, Prepotherium, Strabosodon, Ranculcus)
-------- 1891b. ?? Revista Argentina de Historia Natural, tome 1: 315-325.
Dozo, M. T. 1987. The endocranial cast of an early Miocene edentate, Hapalops indifferens Ameghino (Mammalia, Edentata Tardigrada, Megartheriidae). Comparative study with brains of recent sloths. Journal für Hirnforschung, 28(4): 397-406.
Matthew, W. D. 1912. The ancestry of the Edentates as illustrated by the skeleton of Hapalops. American Museum Journal, 12: 300-303.
Scott,
W. B. 1904. Mammalia of the Santa Cruz beds, Part 1. Edentata. Report of Princeton University Expedition to Patagonia,
1896-1899, 5: 161-364.