Gw mau tau Keluarga dari Kungkang darat

Paleontolog membagi lebih dari 80 genera kungkang darat dalam beberapa famili.

Kriptozoolog kadang mengidentifikasi mapinguari, makhluk hutan legenda di dataran Utara Amazon, dengan kungkang darat tropis.

(1796): Notice sur le squellette d'une très grande espèce de quadrupède inconnue jusqu'à présent, trouvé au Paraquay, et déposé au cabinet d'histoire naturelle de Madrid. Magasin encyopédique, ou Journal des Sciences, des Lettres et des Arts (1): 303-310; (2): 227-228.

(1999): A new giant megatheriine ground sloth (Mammalia: Xenarthra: Megatheriidae) from the late Blancan to early Irvingtonian of Florida. Zool. J. Linn. Soc. 127(4): 495-515.

(1993): Yukon Beringia Interpretive Center - Jefferson's Ground Sloth . Retrieved 2008-JAN-24.

(2008): Cueva del Milodon, Megalithic Portal. Retrieved 2008-APR-13

(1980): Pleistocene Mammals of North America. Columbia University Press, New York.ISBN 0-231-03733-3

(1997): Classification of Mammals Above the Species Level. Columbia University Press, New York.ISBN 0-231-11013-8

(1999): Walker's Mammals of the World (Vol. 2). Johns Hopkins University Press, London.

(1993): Indicators of locomotor habits in Xenarthrans: Evidence for locomotor heterogeneity among fossil sloths. Journal of Vertebrate Paleontology, 13(2): 230-242.

(2001): The sloths of the West Indies: a systematic and phylogenetic review. In: : Biogeography of the West Indies: Patterns and Perspectives: 201-235.

(1900): On some remains of Grypotherium (Neomylodon) listai and associated mammals from a cavern near Consuelo Cove, Last Hope Inlet. Proceedings of the Zoological Society of London'', 1900(5): 64-79.