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A new species of Vorticifex (Gastropoda: Planorbidae) from late Cenozoic lake deposits, Nevada

Published online by Cambridge University Press:  20 May 2016

James R. Firby*
Affiliation:
Department of Geological Sciences, Mackay School of Mines, University of Nevada, Reno 89557

Abstract

A new species of planorbid gastropod, Vorticifex taylori, is described from the Late Miocene (Clarendonian) Truckee Formation at its type area in Churchill County, Nevada. Comparison with younger and older species assigned to Vorticifex indicates a high degree of morphologic variation within the genus as contrasted with relatively conservative intraspecific variation, which may reflect ecologic similarities at discrete times during the development of the Great Basin subprovince of the Basin and Range physiographic province.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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References

Axelrod, D. I. 1956. Mio-Pliocene floras from west-central Nevada. University of California Publications in Geological Sciences, 33:1322.Google Scholar
Baker, F. C. 1945. The Molluscan Family Planorbidae. University of Illinois Press, Champaign, 530 p.Google Scholar
Call, R. E. 1884. On the Quaternary and Recent Mollusca of the Great Basin. U.S. Geological Survey Bulletin, 11:357410.Google Scholar
Cuvier, G. 1797. The Animal Kingdom, Arranged after Its Organization; Forming a Natural History of Animals, and an Introduction to Comparative Anatomy, New ed. Carpenter, W. B. and Westwood, J. O., London, 1863, added The Molluscous Animals by G. Johnston. Volume 7, 670 p.Google Scholar
Dall, W. H. 1870. On Pompholyx and its allies, with a revision of the Lymnaeidae of authors. Annals Lyceum Natural History, New York, 9:333361.Google Scholar
Dall, W. H. 1924. Discovery of a Balkan fresh-water fauna in the Idaho Formation of Snake River Valley, Idaho. U.S. Geological Survey Professional Paper, 132-G:109115.Google Scholar
Dalrymple, G. B. 1979. Critical tables for conversion of K-Ar ages from old to new constants. Geology, 7:558560.Google Scholar
Evernden, J. F., and James, G. T. 1964. Potassium-argon dates and the Tertiary floras of North America. American Journal of Science, 262:945974.Google Scholar
Evernden, J. F., Savage, D. E., Curtis, G. H., and James, G. T. 1964. Potassium-argon dates and the Cenozoic mammalian chronology of North America. American Journal of Science, 262:145198.Google Scholar
Firby, J. R. 1966. New non-marine Mollusca from the Esmeralda Formation, Nevada. Proceedings of the California Academy of Sciences, Fourth Series, 33:453480.Google Scholar
Gilbert, C. M., Christensen, M. N., Al-Rawi, Yehya, and Lajoie, K. R. 1968. Structural and volcanic history of Mono Basin, California—Nevada. Geological Society of America Memoir, 116:275329.Google Scholar
Hanna, G. D. 1963. Some Pleistocene and Pliocene freshwater Mollusca from California and Oregon. California Academy of Sciences Occasional Papers, 43:120.Google Scholar
Hannibal, H. 1912. A synopsis of the Recent and Tertiary freshwater Mollusca of the California Province. Proceedings of the Malacological Society of London, 10:112211.Google Scholar
Keferstein, W. 1864. Klassen und Ordnungen des Thier-Reichs. Weichthiere (Malacozoa), 3, 1246 p.Google Scholar
King, C. 1878. United States geological exploration of the fortieth parallel. Report of the Geological Exploration of the Fortieth Parallel, Professional Papers of the Engineering Department, United States Army, 18, 1:1803.Google Scholar
Linnaeus, C. 1758. Systema naturae per regna tria naturae, secundum classe, ordines, genera, species, cum characteribus, differntiis, synonymis, locis. L. Salvii, Holmiae, 824 p.Google Scholar
Macdonald, J. R. 1956. A new Clarendonian mammalian fauna from the Truckee Formation of western Nevada. Journal of Paleontology, 30:186202.Google Scholar
Meek, F. B. 1870. Descriptions of fossils collected by the U.S. Geological Survey under the charge of Clarence King, Esquire. Philadelphia Academy of Natural Sciences, Proceedings, 22:5664.Google Scholar
Meek, F. B. 1877. United States geological exploration of the fortieth parallel, Part 1, Paleontology. Report of the Geological Exploration of the Fortieth Parallel, Professional Papers of the Engineering Department, United States Army, 18, 4:1197.Google Scholar
Morton, J. L., Silberman, M. L., Bonham, H. F. Jr., Garside, L. J., and Noble, D. C. 1977. K-Ar ages of volcanic rocks, and ore deposits in Nevada and eastern California—determinations run under USGS/NBMG Cooperative Program. Isochron/West, 19:1929.Google Scholar
Rickey, K. A. 1948. Lower Pliocene horses from the Black Hawk Ranch, Mount Diablo, California. University of California Publications, Bulletin of the Department of Geological Sciences, 28:136.Google Scholar
Schorn, H. E., Scudder, H. I., Savage, D. E., and Firby, J. R. 1989. General stratigraphy and paleontology of the Miocene continental sequence in Stewart Valley, Mineral County, Nevada. Proceedings of the International Symposium on Pacific Neogene Continental and Marine Events, Nanjing, People's Republic of China, 1:157173.Google Scholar
Taylor, D. W. 1966. Summary of North American Blancan non-marine mollusks. Malacologia, 4:1172.Google Scholar
Taylor, D. W. 1975. Index and bibliography of late Cenozoic freshwater Mollusca of western North America. Pacific Marine Station, University of the Pacific, Contribution, 43:1384.Google Scholar
Turner, H. W. 1900. The Esmeralda Formation, a fresh-water lake deposit in Nevada. U.S. Geological Survey 21st Annual Report, 2:191224.Google Scholar
Whitehead, H. C., and Feth, J. H. 1961. Recent chemical analyses of waters from several closed-basin lakes and their tributaries in the western United States. Geological Society of America Bulletin, 72:14211426.Google Scholar
Yen, T. C. 1950. A molluscan fauna from the type section of the Truckee Formation. American Journal of Science, 248:180193.Google Scholar
Zilch, A. 1959. Handbuch der Palaozoologie, Gastropoda: Euthyneura. Gebr. Borntrager, Berlin, 6(2), 200 p.Google Scholar