References concerning Jefferson's ground sloth, Megalonyx, and particularly the Holmes County, Ohio, skeleton, which is on display in the Orton Museum:
1Boyd, J.P. 1958. The Megalonyx, the Megatherium, and Thomas Jefferson’s lapse of memory. Proceedings of the American Philosophical Society, 102(5), 420-435.
2Brush, N., Redmond, B.G., Kardulias, P.N., Wiles, G., Burks, J., Greenfield, H.J., Yerkes, R.W., McDonald, H.G., Leone, K.L., Hannan, R., Donaldson, S., Dilyard, J. 2018. Description of an American mastodont (Mammut americanus) site in Morrow County, Ohio, and assessment of evidence for early Paleoindian exploitation. Archaeology of Eastern North America 46, 215-240.
3Claypole, A.W. 1891. Megalonyx in Holmes County, Ohio, 1890. The American Geologist 7, I: p. 122-132; II: p. 149-153.
4Fisher, D.C. 1984a. Mastodon butchery by North American Paleo-Indians. Nature 308, 271-272.
5Fisher, D.C. 1984b. Taphonomic analysis of Later Pleistocene mastodon occurrences: evidence of butchery by North American Paleo-Indians. Paleobiology 10, 338-357.
6Fisher, D.C., Lepper, B.T., Hooge, P.E. 1991. Taphonomic analysis of the Burning Tree mastodont. Current Research in the Pleistocene 8, 88-92.
7Jefferson, T. 1799. A memoir of the discovery of certain bones of a quadruped of the clawed kind in the western parts of Virginia. Transactions of the American Philosophical Society 4, 246-250.
8Leidy, J. 1855. A memoir of the extinct sloth tribe of North America. Smithsonian Contributions to Knowledge 7, 1–68.
9McDonald, H.G., Stafford, T.W., Jr., Gnidovec, D.M. 2015. Youngest radiocarbon age for Jefferson’s ground sloth, Megalonyx jeffersonii (Xenartha, Megalonychidae). Quaternary Research 83, 355-359.
10Orton, E. 1891a. On the occurrence of Megalonyx jeffersonii (Harlan) in central Ohio. Scientific American, Supplement 784, p. 12531.
11Orton, E. 1891b. On the occurrence of Megalonyx jeffersoni in central Ohio. Geological Society of America Bulletin 2, 635.
12Redmond, B.G., McDonald, H.G., Greenfield, H.J., Burr, M.L. 2012. New evidence for Late Pleistocene human exploitation of Jefferson’s ground sloth (Megalonyx jeffersonii) from northern Ohio. World Archaeology (Faunal Extinctions and Introductions) 44(1), 75-101.
13Rowland, S.M. 2009. Thomas Jefferson, extinction, and the evolving view of Earth history in the late eighteenth and early nineteenth centuries. Geological Society of America Memoir 203, 225-246.
14Simpson. G.G. 1942. The beginnings of vertebrate paleontology in North America. Proceedings of the American Philosophical Society, 86(1), 130-188.
15Wistar, C. 1799. A description of the bones deposited, by the President, in the Museum of the Society, and represented in the annexed plates. Transactions of the American Philosophical Society 4, 526-531.