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Galetti, M and O de Carvalho. 2000. Sloths in the diet of a harpy eagle nestling in eastern Amazon. Wilson Bulletin 112(4):  535-536.

Gaudin, TJ. 1990. The ear region of the Pilosa (Mammalia, Xenarthra) and the phylogeny of the Tardigrada. Journal of Vertebrate Paleontology 10: 24A.

––– 1995. The ear region of Edentates and the phylogeny of the Tardigrada (Mammalia, Xenarthra). Journal of Vertebrate Paleontology 15(3): 672-705.

––– 1999. The morphology of xenarthrous vertebrae (Mammalia: Xenarthra). Fieldiana, Geology 41: 1-?

––– 2003. Phylogeny of the Xenarthra (Mammalia). Senckenbergiana Biologica 83(1): 27-40.

––– 2004. Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence. Zoological Journal of the Linnean Society 140(2): 255-305.

Gazin, CL. 1935. Gravigrade sloth remains from the late Pliocene and Pleistocene of Idaho. Journal of Mammalogy 16(1): 52-60.

––– 1957. Exploration for the remains of giant ground sloths in Panama. Annual Reports of the Smithsonian Institution 4272: 341-354.

Gervais, P. 1855a. Castelnau, Expédition dans les arties centrales de l'Amérique de Sud. Part 7, Zoologie Mammifères fossils:. 44-53. (type description, Lestodon)

-------- 1855b. Recherches sur les mammifères fossils de l’Amérique méridionale. Annales des Sciences Naturelles, Zoologie (4) 3(6): 330-338.

––– 1869. Mémoire sur les formes cérébrales propres aux Édentés vivants et fossiles precede de remarques sur quelques points de la structure anatomique de ces animaux et sure leur classification. Nouvelles Archives du Musée d'Historie Naturel 5.

––– 1873. Du Lestodon armatus. Mémoire de la Soc. Géologie de France 2 série, tome 9, Mém. 5: 21-35.

––– 1877. Rémarques ostéologiques au sujet des pieds des édentés. Journal de Zoologie 6: 79-82, 198-228.

Gervais, P and F Ameghino. 1880. Les Mammifères fossiles de l'Amérique du Sud. pp. 133-177. (type description, Pseudolestodon)

Gill, T. 1872. Arrangements of the families of Mammals, with analytical tables. Smithsonian Miscellaneous Collections 11: 1-98.

––– 1910. Classification of the edentates. Science 32: 56.

Gillette, DD, HG McDonald and MC Hayden. 1999. The first record of Jefferson's ground sloth, Megalonyx jeffersoni, in Utah (Pleistocene, Rancholabrean Land Mammal Age). Utah Geological Survey Miscellaneous Publication 99-1: 509-521.

Gillingham, B. 1988. Paramylodon. Bulletin of the Southern California Paleontological Society 20(7-8): 214-217.

Gilmore, DP. 1991. Effect of exogenous LHRH on plasma LH and sex steroid levels in the three-toed sloth Bradypus tridactylus. Medical Science Research 19: 333-335.

––– 1995. The three-toed sloth in biomedical research: An update on the reproductive and endocrine systems. Medical Science Research 23(9): 579-583.

Gilmore, DP, CP Da Costa and DPF Duarte. 2000. An update on the physiology of two- and three-toed sloths. Brazilian Journal of Medical and Biological Research 33(2): 129-146.

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Goffart, M. 1968. The problem of slothfulness ins the didactyl sloth, Choloepus hoffmanni Peters. Electromyography 8: 245-251.

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Goldschmidt, B, JCC de Almeida and VL de Oliveira. 1995. Visualization of nucleolar organizer regions in sloths (Bradypus variegatus and Scaeopus torquatus). Brazilian Journal of Genetics 18(1): 111

Grabowski, NT, C Izcalli, A Knierien and JH Hamann. 2002. Comparison of major and minor milk constituents of a milk sample from the two-toed sloth (Choloepus didactylus) in early lactation to common rearing formulae. Zoologische Garten 72(3): 177-188.

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Grasse, PP. 1955. Ordre des Edentes (Edentata Cuvier, 1798; Edentati Vicq D'Azyr, 1792; Bruta Linne, 1758 p. p), formes actuelles. In PP Grasss (Ed.) Traite de zoologie, anatomie, systematique, biologie mammiferes. Paris, Masson et Cie. Editeurs, Libraires de L'academie de Medicine. p.p. 1182-1246

Grater, RK. 1958. Last stand of the ground sloth. Arizona Highways 34(7): 30-33.

Gray, JE. 1849. On the genus Bradypus of Linnaeus. Proceedings of the Zoological Society, London 1849: 65-73.

––– 1869. Catalogue of the carnivorous, pachydermatous, and endentate Mammalia in the British Museum. London. 398pp.

––– 1871. Notes on the species of Bradypodidae in the British Museum. Proceedings of the Zoological Society, London 1871: 428-449.

––– 1873. Hand-list of the edentate, thick-skinned and ruminant mammals in the British Museum. London. 176pp.

Greene, HW. 1989. Agonistic behavior by three-toed sloths, Bradypus variegatus. Biotropica 21(4): 369-372.

Greenwood, AD, C Capelli, G Possnert and S Pääbo. 1999. Nuclear DNA sequences from Late Pleistocene megafauna. Molecular Biology and Evolution 16(11): 1466-1473.

–––, J Castresana, G Feldmaier-Fuuchhs and S Pääbo.  2001. A Molecular Phylogeny of Two Extinct Sloths. Molecular Phylogenetics and Evolution 18(1): 94-103.

Guerin, C and M Faure. 2000. La Veritable nature de Megatherium laurillardi Lund, 1842 (Mammalia, Xenarthra); un nain parmi les geants. Geobios 33(4): 475-488.

––– and ––– . 2004. Scelidodon piauiense nov. sp., nouveau Mylodontidae Scelidotherinae (Mammalia, Xenarthra) du Quaternaire de la region du parc national Serra da Capivara (Piauí, Brésil). Comptes Rendus Paleovol 3: 35-42. (type description, Scelidodon piauiense)

Gustafson, EP. 1978. The vertebrate faunas of the Pliocene Ringold Formation, south-central Washington. Bulletin of the Museum of Natural History, University of Oregon 23: 1-62.

Guth, C. 1956. Contribution a la connaissance de l'os temporal de Scelidotherium Owen. Annales de Paleontologie. Invertebres 42: 151-168.

––– 1961. La région temporale des Édentés. Ph.D. dissertation, L'Université de Paris. Paris, France, 192 pp.