Figure 33. Stereo pair of basalt flows on Mesa De Maya. Point C on the photograph corresponds to point C of Figure 32. (US. Dept. Agriculture photo).

Sigmodon minor) inhabited marshy areas along the 11) The Mesa De Maya fauna is Sangamon in age alluvial fan. and correlates best with the Cragin Quarry fauna. 6) The Donnelly Ranch local fauna is pre- 12) Pollen analysis demonstrates the flora of the Nebraskan in age and is younger than the Sand Draw, area during the Sangamon was much the same as the Broadwater, and Blanco faunas. It is slightly older than present. the Curtis Ranch fauna. 13) Massive and nodular caliche formed in the 7) About 2.0 m.y. elapsed between the deposition channel sands and mudflow deposits later in the of the pre-Nebraskan sediments containing the Donnel- Sangam on. ly Ranch fauna and the deposition of Sangamon 14) Except for minor deposits of Wisconsin and re- sediments containing the Mesa De Maya fauna. cent alluvium, the Sangamon topography is still pre- 8) Locally derived sediments were again added to served in the Donnelly Ranch area. the alluvial fan by stream, intermediate, and mudflow deposition. In addition, an artesian spring deposited a layer of “flour sand” and a gley soil formed beneath it. 9) At the time of deposition, temperatures were REFERENCES CITED more equable than present and precipitation was slightly Allen, Glover M., 1940, The of China and more effective during cooler summers. Mongolia in Natural History of Central 10) Grasslands were extensive and inhabited by Asia: Vol. 11, pt. 2, Am. Mus. Nat. History. prairie dog (Cynomys gunnisoni and C. ludovicianus), ground squirrel (Spermophilus tridecemlineatus), plains Anderson, Elaine, 1967. EQUUS conversidens from pocket gopher (Geomys bursarius), the pocket mouse Wyoming: Jour. Mammalogy, Vol. 48, No. 4, p. (Perognathus hispidus), prairie vole (Microtus 660-663. orchrogaster), bison, mammoth (Mammuthus im- , 1968, Fauna of the Little Box Elder Cave, perator), camel (Camelops hesternus), and (Equus Converse County, Wyoming: Univ. of Colorado (Hemionus) conversidens). Small mice (Peromyscus Studies, Ser. Earth Sci., No. 6, p. 1-59. progressus and P. cragini) and aquatic and terrestrial molluscs inhabited the marshy area near the artesian Aquirre, Emiliano, 1969, Evolutionary history of the spring. elephant: Science, Vol. 164, p. 1366-1376.

Contributions to Geology, Special Paper No. 2, 1975 59

Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/3754177/9780989762618_backmatter.pdf by guest on 27 September 2021 Baily, Vernon, 1900, Revision of American voles of the Dalquest, W. W., and Hughes, J. T., 1965, The genus Microtus: North Am. Fauna, No. 17, p. 1- , Equus conversidens: Am. 88. Midland Nat., Vol. 74, p. 408-417. Baker, Rollin H., 1968, Habitats and distribution in Doell, R. R., and Cox, A., 1967, Paleomagnetic sampl- Biology of Peromyscus: John A. King, editor, ing with a portable coring drill, in Methods in Am. SOC.Mamm., Spec. Publ. No. 2, p. 98-121. Paleomagnetism, Vol. 3, Developments in Solid Earth Geophysics: edited by Collinson, Creer, Baldwin, Brewster, and Muehlberger, William R., 1959, and Runcorn, Elsevier, New York, p. 21-25. Geologic studies of Union County, New Mex- ico: N. Mex. School of Mines, State Bur. Mines Fenneman, N. M., 1931, Physiography of western and Mineral Res. Bull. 63, p. 171. United States: McGraw-Hill Book Co., 534 p. Brattstrom, B. H., 1961, Some new fossil tortoises from Franzen, D. S., and Leonard, A. B., 1947, Fossil and western with remarks on the Living Pupillidae (Gastropods= Pulmonata) in zoogeography and paleoecology of tor- : Kansas Univ. Sci. Bull., V. 31, p. 311- toises: Jour. Paleo., V. 35, No. 3, p. 543-560. 41 1. Bull, W. B., 1964, Alluvial fans and near surface sub- Gazin, C. Lewis, 1942, The late Cenozoic vertebrate sidence in western Fresno County, Califor- faunas from the San Pedro Valley, : Proc. nia: U.S. Geol. Survey Prof. Paper 437-A, 70 p. U.S. Natl. Mus., Vol. 92, No. 3155, p. 475-518. , 1972, Recognition of alluvial-fan deposits Gidley, J. W., 1920, Pleistocene peccaries from the in the stratigraphic record, in Recognition of An- Cumberland Cave deposit: Proc. U.S. Nat. cient Sedimentary Environments: J. K. Rigby, Museum, Vol. 57, No. 2324, p. 651-678. editor, Soc. Econ. Paleo. and Min., Spec. Publ. NO. 16, p. 63-83. Gile, L. H., Peterson, F. F., andGrossman, R. B., 1966, Morphological and genetic sequences of carbonate Burt, William H., and Grossenheider, Richard P., 1964, accumulation in desert soils: Soil Science, Vol. A field guide to the mammals: Boston, Houghton 101, NO. 5, p. 347-360. Mifflin Co., 283 p. Griggs, R. L., 1948, Geology and ground water Cantwell, R. J., 1969, Fossil Sigmodon from the Tusker resources of the eastern part of Colfax County, locality, 111 Ranch, Arizona: Jour. Marnm., Vol. : N. Mex. School of Mines, State 50, NO. 2, p. 375-378. Bur. Mines and Mineral Res. Groundwater Rpt. 1, p. 182. Churcher, C.. S., 1968, Pleistocene ungulates from the Bow River gravels at Cochrane, Alberta: Cana- Hay, 0. P., 1915, Contributions to the knowledge of the dian Jour. Earth Sci., Vol. 5, No. 6, p. 1467-1496. mammals of the Pleistocene of North , 1972, Imperial mammoth and Mexican America: U.S. Natl. Mus., Vol. 48, p. 515-575. half-ass from near Bindloss, Alberta: Canadian Jour. Earth Sci., Vol. 9, No. 11, p. 1562-1567. , 1917, On a collection of fossil vertebrates made by Dr. F. W. Cragin from the Equus beds of Climatography of the United States No. 85, 1963, Kansas: Kansas University Sci. Bull., Vol. 10, No. Decennial census of the United States climate, 4, p. 39-51. monthly averages for state climatic division, 1931- 1960: U.S. Dept. of Commerce, Weather Bureau, Hay, Oliver P. and Cook, Harold J., 1930, Fossil Washington, D.C. vertebrates collected near, or in association with human artifacts at localities near Colorado, ; Climatography of the United States No. 86-5, 1964, Frederick, Oklahoma; and Folsom, New Mex- Decennial census of the United States climate, ico: Proc. Colo. Mus. Nat. Hist., Vol. 9, No. 2, p. climatic summary of the United States - Supple- 4-40. ment for 1951 through 1960, Colorado: U.S. Dept. of Commerce, Weather Bureau, Henderson, Junius, 1924, Mollusca of Colorado, Utah, Washington, D.C. Montana, Idaho and Wyoming: Colorado Univ. Cope, E. D., 1893, A preliminary report on the Studies, Vol. 13, No. 2, p. 65-223. vertebrate paleontology of the Llano Estacado: Geol. Survey Tex., 4th Ann. Rpt. , 1936, Mollusca of Colorado, Utah, Mon- (1892), pt. 2, 136 p. tana, Idaho, and Wyoming- supplement: Colorado Univ. Studies, Vol. 23, No. Cox, A., 1969, Geomagnetic reversals: Science, V. 163, 2, p. 81-145. p. 237-245. Cox, Allan, and Dalrymple, G. B., 1967, Statistical Hibbard, C. W., 1939, Notes on some mammals from analysis of geomagnetic reversal data and the the Pleistocene of Kansas: Trans. Kansas Acad. precision of potassium-argon dating: Jour. Science, Vol. 42, p. 463-479. Geophys. Research, V. 72, p. 2603-2614. , 1944, Stratigraphy and vertebrate paleon- Dalquest, W. W., 1964, A new Pleistocene local fauna tology of Pleistocene deposits of southwestern from Motley County, Texas: Trans. Kansas Acad. Kansas: Geol. SOC.America Bull., Vol. 55, p. 707- Sci., Vol. 67., p. 499-505. 754. 60 Contributions to Geology, Special Paper No. 2. 1975

Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/3754177/9780989762618_backmatter.pdf by guest on 27 September 2021 , 1949, Techniques of collecting microverte- , 1967, Pleistocene rnollusca of Ohio: Ohio brate fossils: Contrib. Mus. Paleont. Univ. Geological Survey, Bull. 62, Pt. 2, p. 113-356. Michigan, Vol. 8, No.2, p. 7-19. , 1968, Pleistocene mollusca of Ohio: Ohio , 1955, Pleistocene vertebrates from the up- Geological Survey, Bull. 62, Pt. 3, p. 357-553. per Becerra (Becerra Superior) Formation, Valley of Tequixquiac, Mexico, with notes on other , 1970, Pleistocene mollusca of Ohio: Ohio Pleistocene forms: Contrib. Mus. Paleontol. Geological Survey, Bull. 62, Pt. 4, p. 555-880. Univ. Mich., Vol. 12, No. 5, p. 47-96. Lechleitner, R. R., 1969, Wild mammals of , 1963, A late Illinoian fauna from Kansas Colorado: Boulder, Pruett Publishing Co., 254 p. and its climatic significance: Papers Michigan Leidy, J., 1854, Description of a fossil apparently in- Acad. Sci., Arts, Letters, Vol. 48, p. 187-221. dicating an extinct of camel tribe: Proc. , 1970, Pleistocene mammalian local faunas Acad. Nat. Sci. Phila., Vol. 7, p. 172-173. from the Great Plains and central Lowland Levings, William S., 1951, Late Cenozoic erosional Provinces of the United States, in Dort, W., Jr., history of the Raton Mesa region: Quart. Colo. and J. K. Jones, Jr. (eds.), Pleistocene and Recent School of Mines, Vol. 46, No. 3, 111 p. environments of the central Great Plains: Dept. Geol. Univ. Kansas Press Special, Publ. 3, p. 395- Lundelius, Ernest L., and Stevens, Margaret S., 1970, 433. Equus francisci Hay, a small stilt-legged horse, middle Pleistocene of Texas: Jour. Paleo., Vol. 44, Hibbard, C. W., and Dalquest, W. W., 1966, Fossils NO. 1, p. 148-153. from the Seymour Formation of Knox and Baylor counties, Texas, and their bearing on the Late McGrew, Paul O., 1944, An early Pleistocene (Blancan) Kansan climate of that region: Contrib. Mus. fauna from Nebraska: Field Mus. Natl. Hist., Paleo., Univ. Michigan, Vol. 21, p. 1-66. Geol. Series, Vol. 9, No. 2, p. 33-66. Hibbard, C. W., and Taylor, Dwight W., 1960, Two late Martin, Edwin P., 1956, A population study of the Pleistocene faunas from southwestern Kan- Prairie Vole (Microtus orchrogaster) in sas: Univ. Michigan Mus. Paleontology Contr., northeastern Kansas: Univ. Kansas Publ. Mus. Vol. 16, NO. 1, p. 1-223. Nat. Hist., Vol. 8, p. 361-416. Martin, Robert A., 1970, Line and grade in the extinct Hoffstetter, Robert, 1950, Algunas observaciones sobre medius species group of Sigmodon: Science, Vol. 10s caballos fosiles del la america del sur Amerhip- 167, p. 1504-1506. pus Gen. Nov.: Bol. Informaciones Cient. Nac., Vol. 3, Art. No. 26 p. 426-454. Made, G. E., 1945, The Blanco fauna: Univ. Texas Holman, J. Allan, 1972, Amphibians and reptiles, in Publ., NO. 4401, p. 509-556. Skinner and Hibbard and others, Early Pleistocene Merriam, John C., 1913, Preliminary report on the pre-glacial and glacial rocks and faunas of north- of Ranch La Brea: Univ. Calif. Geol. Dept. central Nebraska: Amer. Mus. Nat. Hist., Vol. Bull., Vol. 7, NO. 21, p. 397-418. 148. Art. I, p. 55-71. Miller, Richard S., 1964, Ecology and distribution of Howell, Arthur H., 1938, Revision of the North pocket gophers (Geomyidae) in American ground squirrels: North American Colorado: Ecology, Vol. 45, No. 2, p. 256-272. Fauna, No. 56, p. 1-256. Jones, D. T., 1940, A study of the Great Basin land snail Miller, Barry B., and Hibbard, Claude W., 1972, Recent Oreohefix strigosa depressa (Cock erell): Bu 11. mollusca of Ellsworth County, Kansas: Sterkiana, Univ. Utah, Vol. 31, No. 4(Biol. Series Vol. 6, No. NO. 46, p. 11-14. I), p. 3-43. Mooser, O., 1957, Una fosil de la Mesa Central Kapp, Ronald O., 1965, Illinoian and Sangamon vegeta- De Mexico: Sobretiro de 10s Anales del Instituto tion in southwestern Kansas and adjacent de Biologia, T. 28, Nos. 1 y 2. Oklahoma: Contrib. Mus. Paleontol., Univ. Mich., Vol. 19, No. 14, p. 167-255. , 1959, Un Equido fosil del genera Neohip purion de la Mesa Central de Mexico: An. Inst. Kauffman. Erle G.. 1965. Biota of a late glacial Rockv Biol. Univ. Nac. Mex., 30, p. 375-388. Mountain pond: Gkl. SOC.Americi Bull., V. 76, p. 1203-1232. Naeser, C. W., Izett, G. A., and Wilcox, R. E., 1973, Zircon fission-track ages of Dearlette familv ash Lammers, G. E., 1970, The late Cenozoic Benson and beds in Made County, Kansas: Geology, v61. 1, Curtis Ranch faunas from the San Pedro Valley, NO. 4, p. 187-189. Cochise County, Arizona: Unpublished Ph.D. thesis, University of Arizona, 193 p. Osborn, H. F., 1942, The Proboscidea: a monograph of the discovery, migration, and extinction of the LaRocque, AurZle, 1966, Pleistocene mollusca of mastodonts and elephants of the world, 11; Ohio: Ohio Geological Survey, Bull. 62, Pt. 1, p. Stegodontoidea, Elephantoidea; Am. Mus. Nat. 1-1 11. Hist.. p. 1-1675.

Contributions to Geology, Special Paper No. 2, 1975 61

Downloaded from http://pubs.geoscienceworld.org/books/book/chapter-pdf/3754177/9780989762618_backmatter.pdf by guest on 27 September 2021 Parker, Ronald B., and Toots, Heinrich, 1970, Minor sas: U.S. Geol. Survey, Misc. Geologic Invest., elements in fossil bone, Geol. SOC.America Bull., Map 1-560. V. 81, p. 925-932. Skinner, Morris F., 1942, The fauna of Papago Springs Passega, R., 1957, Texture as characteristic of clastic Cave, Arizona: Am. Mus. Nat. Hist., Bull. Vol. deposition: Am. Assoc. Petroleum Geologists 80, Art. 6, p. 143-220. Bull., V. 41, p. 1952-1984. Skinner, Morris F. and Hibbard, Claude W., and Paulson, Gerald R., 1961, The mammals of the Cudahy others, 1972, Early Pleistocene preglacial and fauna: Papers Michigan Acad. Sci., Arts, Letters, glacial rocks and faunas of North-Central Vol. 46, p. 127-153. Nebraska: Bull. Am. Mus. Natl. Hist., Vol. 148, Art. 1, 148 p. Pilsbry, H. A., 1812, Land Mollusca of North America: Acad. Nat. Sciences of Philadelphia, Simpson, G. G., 1945, Notes on Pleistocene and recent Monograph No. 3, Vol. 1, Pt. 2, p. 575-994. tapirs: Amer. Mus. Nat. Hist., Vol. 86, Art. 2, p. 37-8 1. Quick, Horace F., 1965, Ecology of the African elephant: B.S.C.S. Pamphlet, No. 21, D. C. Heath Starrett, Andrew, 1956, Pleistocene mammals of the and Co., Boston, 34 p. Berends Fauna of Oklahoma: Jour. Geol., Vol. 30, p. 1187-1192. Quinn, J. H., 1955, Miocene of the Texas Gulf Coastal Plain: Bur. Econ. Geol. Univ. Texas, Stock, Chester, 1925, Cenozoic gravigrade edentates of Publ. NO. 5516, p. 5-102. western North America: Carnegie Institution of Washington, 206 p. Reeves, C. C., Jr., 1970, Origin, classification, and geologic history of caliche on the southern High Stormer, J. C., Jr., 1972, Ages and nature of volcanic ac- Plains, Texas and eastern New Mexico: Jour. tivity on the southern High Plains, New Mexico Geol., Vol. 78, p. 352-362. and Colorado: Geol. SOC.Amer. Bull., V. 83, p. 2443-2448. Reynolds, Richard L., and Larson, Edwin E., 1972 Paleomagnetism of pearlette-like air-fall ash in the Taylor, D. W., 1954, A new Pleistocene fauna and new midwestern and western United States: Geol. SOC. species of fossil snails from the High Am., Abstracts with Programs, Vol. 4, No. 6, p. Plains: Michigan Univ. Zool. Occ. Paper 557, 16 405. P. Savage, D. E., 1951, Late Cenozoic vertebrates of the , 1960, Late Cenozoic molluscan faunas San Francisco Bay Region: U. Calif. Publ., Dept. from the High Plains: U.S. Geol. Survey Prof. Geol. Sci., Vol. 28, No. 10, p. 215-314. Paper 337, 94 p. Schultz, Gerald E., 1969, Geology and paleontology of a Thornbury, William D., 1965, Regional geomorphology late Pleistocene basin in southwest Kansas: Geol. of the United States: John Wiley and Sons, Inc., SOC.Amer. Spec. Paper No. 105, 85 p. New York, 609 p. Semken, Holmes, A., 1966, Stratigraphy and paleon- Thornthwaite, C. W., 1948, An approach toward a tology of the McPherson Equus beds (Sandahl rational classification of climate: Geographical local fauna), McPherson County, Kansas: Con- Review, p 55-94. trib. Mus. Paleontol. Univ. Mich., Vol. 20, No. 6, Visher Stephen S., 1945, Climatic maps of geologic in- p. 121-178. terest: Geol. SOC.America Bull. Vol. 56, p. 713- 736. Scott, Glenn R., 1963, Quaternary geology and geomorphic history of the Kassler Quadrangle Webb, S. D., 1965, The osteology of Camelops: Bull. Colorado: U.S. Geol. Survey Prof. Paper 421-A, Los Angeles County Mus., Sci., No. 1, p. 1-54. 70 p. Whitmore, Frank C., Jr., and others, 1967, Elephant , 1968, Geologic and structure contour map teeth from the Atlantic Continental Shelf, Science, of the La Junta Quadrangle, Colorado and Kan- VOI. 156, NO. 3781, p. 1477-1481.

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