O
Oliveira, L. H. A., C. P. da Costa and S. E. Huggins. 1980. Cardiac mass, blood temperature and ventricular fibrillation: a study of the comparative physiology of the three-toed sloth and the domestic cat. Comparative Biochemistry and Physiology A, 67(3): 483-490.
Oren, D. C. 1993. Did ground sloths survive to recent times in the Amazon Region? Goeldiana Zoologica, 19: 1-11.
Orr, P. 1938. Unique construction of an exhibit of Pliocene edentates. Technical Series, Field Museum of Natural History, 5: 3-6.
Owen, R. 1840. Zoology of the Voyage of the Beagle. Part 1, Fossil Mammalia. Pp. 57-106.
-------- 1842. Description of the Skeleton of and Extinct Gigantic Sloth, Mylodon robustus Owen, with Observations on the Osteology, Natural Affinities, and Probable Habits of the Megatherioid Quadrupeds in General. R. and J. Taylor, London, 176 pp.
-------- 1843. Letter from Richard Owen, Esq., F.R.S., F.G.S. &c., &c., on Dr. Harlan’s notice of new fossil Mammalia. American Journal of Science, 44(2): 341-345.
-------- 1851. On the Megatherium (Megatherium americanum, Cuvier and Blumenbach). Part I. Preliminary Observations on the Exogenous Processes of Vertebrae. Philosophical Transactions of the Royal Society of London, 141: 719-764.
-------- 1855. On the Megatherium (Megatherium
americanum, Cuvier and Blumenbach). Part II. Vertebrae of the Trunk. Philosophical Transactions of the Royal Society of
London, 145: 359-389.
--------
1856. On the Megatherium (Megatherium americanum, Cuvier and
Blumenbach). Part III. The skull. Philosophical Transactions
of the Royal Society of London, 146: 571-589.
--------
1857. On the scelidothere (Scelidotherium
leptocephalum Owen). Philosophical Transactions of the Royal
Society of London, 147: 101-110.
--------
1858. On the Megatherium (Megatherium americanum, Cuvier and
Blumenbach). Part IV. Bones of the anterior extremities.
Philosophical Transactions of the Royal Society of London, 148: 261-278.
--------
1860. On the Megatherium (Megatherium americanum, Cuvier and
Blumenbach). Part V. Bones of the posterior extremities.
Philosophical Transactions of the Royal Society of London, 149: 809-829.
--------
1860. Memoir on the Megatherium or giant ground sloth of America (Megatherium
americanum Cuvier). London, United Kingdom. pp 84
Oxnard,
C. E. 1990. From giant ground sloth to human osteoporosis.
Proceedings of the Australasian Society of Human Biology, 3: 75-96.