Nesbitt Memorial Library Journal, Volume 10, Number 2, July, 2000 Page: 80
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Nesbitt Memorial Library Journal
County, Kleberg County, Polk County, San Jacinto County, San Patricio County, and Wharton
The impressive list of extinct animals which may have inhabited what is now
Colorado County in these ancient times and described herein includes representatives from
five orders of mammals. It is possible that all of these creatures did not exist in the county at
the same time; some may have appeared on the scene earlier than others and died out
before others came along. Be that as it may, at one time the assemblage must have been
impressively rich in large creatures compared to the small number of large forms (for ex-
ample, white-tailed deer) living in the area today or even when intensive human settlement
began more than 150 years ago.
Mammalian Order XENARTHRA (Xenarthrans)
This order of mammals includes modern armadillos, anteaters, and sloths. The
nine-banded armadillo is the only modern Texas representative of this group, which is mostly
based in South America. However, in past geological times, gigantic xenarthrans frequented
the Colorado County area. Glyptodons and ground sloths were the most conspicuous such
animals in the Ice Age period.
7 For data on the Edwards Plateau, see Toomey, Blum, and Valastro, "Late Quaternary Climates and
Environments of the Edwards Plateau." For Austin County, see E. D. Cope, "A preliminary report on the
vertebrate paleontology of the Llano Estacado," Texas Geological Survey, 4th Annual Report (for 1892), part 2,
1893, pp. 1-136. For Bee County, see E. H. Sellards, "Pleistocene Artifacts and Associated Fossils from Bee
County, Texas," Geological Society of America, Bulletin 51, 1940, pp. 1627-1658 and J. E. Conklin and B. M.
Conklin, "Pleistocene Berclair Terrace of Medio Creek, Bee County, Texas," Bulletin of the American Associa-
tion of Petroleum Geologists, vol. 46, 1962, pp. 344-353. For Harris County, see G. T. James, "An Edentate
from the Pleistocene of Texas," Journal of Paleontology, vol. 31, 1957, pp. 796-808; B. H. Slaughter and W. L.
McClure, "The Sims Bayou Local Fauna: Pleistocene of Houston, Texas," Texas Journal of Science, vol. 17,
1965, pp. 404-417; and T. C. Kaspar, "Fossil Vertebrates from the Late Pleistocene Taylor Bayou Local Fauna,
Harris County, Texas" (Master of Science Thesis, Midwestern University, 1973). For Kenedy County, see R. W.
Suhm, "Preliminary Investigation of the LaPoloma Mammoth Site (Late Pleistocene) Kenedy County, Texas,"
Taius, vol. 11, 1978, pp. 15-32. For Kleberg County, see R. W. Suhm, "Preliminary Investigation of the Taylor
Ranch Mammoth Site (Late Pleistocene) Kleberg County, Texas," pp. 46-51 in J. L. Russell and R. W. Suhm,
"Geology of Clay Dunes, Baffin Bay, and the South Texas Sand Sheet," Texas Academy of Science, 83rd Annual
Meeting, Corpus Christi, 1980. For Polk and San Jacinto Counties, see Ernest L. Lundelius, Jr., and B. H.
Slaughter, "Notes on American Pleistocene Tapirs," pp. 226-240, in C. S. Churcher, T. S. Parsons, A. G.
Edmunds, and C. M. McGowan, eds.,Athlon: Essays in Paleontology in Honor of Loris Shano Russell (Toronto,
Ontario: Royal Ontario Museum, 1976). For San Patricio County, see O. P. Hay, "A Collection of Pleistocene
Vertebrates from southwestern Texas," Proceedings of the U. S. National Museum, vol. 68, article 24, 1926, and
Ernest L. Lundelius, Jr., "Fossil Vertebrates from the Late Pleistocene Ingleside Fauna, San Patricio County,
Texas," The University of Texas Bureau of Economic Geology, Report of Investigations Number 77, 1972. For
Wharton County, see Eagle Lake Headlight, February 1, 1913; O. P. Hay, "Contributions to the Knowledge of
the Mammals of the Pleistocene of North America," Proceedings of the U. S. National Museum, vol. 48, article
48, 1915, pp. 515-575; and Ernest L. Lundelius and M. S. Stevens, "Equus Francisi Hay, a Small Stilt-legged
Horse, Middle Pleistocene of Texas," Journal of Paleontology, vol. 44, no. 1, 1970, pp. 148-153.
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Nesbitt Memorial Library. Nesbitt Memorial Library Journal, Volume 10, Number 2, July, 2000, periodical, July 2000; Columbus, Texas. (texashistory.unt.edu/ark:/67531/metapth151409/m1/16/?q=nesbitt%20memorial%20library%20journal: accessed May 20, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting Nesbitt Memorial Library.