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Taxonomy and biostratigraphic significance of some Middle Cambrian trilobites from the Conasauga Formation in western Georgia

Published online by Cambridge University Press:  19 May 2016

David R. Schwimmer
David R. Schwimmer*
Affiliation:
Department of Chemistry, Geology, and Engineering, Columbus College, Columbus, Georgia 31993-2399
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Abstract

Biostratigraphic correlations of the Conasauga Formation in the southern Appalachians have been hindered by unreliable trilobite taxonomy. New fossil collections and re-examination of type specimens allow revision or confirmation of assignments for several Middle Cambrian trilobite taxa. These revisions reveal sufficient relationships with trilobites outside the region to place fossiliferous strata in Floyd County, Georgia, into the Oryctocephalus and Bolaspidella assemblage zones of the Middle Cambrian section defined for the Great Basin.

Trilobite taxa considered are: (Agnostida) Baltagnostus centerensis (Resser, 1938) and Peronopsis cf. P. cuneifera (Barrande, 1846); (Ptychopariida) Alokistocare americanum (Walcott, 1916), Elrathia antiquata (Salter, 1859), Asaphiscus gregarius Walcott, 1916, and Glyphaspis cf. G. capella (Walcott, 1916).

Information

Type
Research Article
Information
Journal of Paleontology , Volume 63 , Issue 4 , July 1989 , pp. 484 - 494
Copyright
Copyright © The Paleontological Society 

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References

Allen, A. T., and Lester, J. G. 1954. Contributions to the paleontology of northwest Georgia. Geological Survey of Georgia Bulletin 62, 116 p.Google Scholar
Barrande, J. 1846. Notice préliminaire sur le système silurien et les trilobites de Bohême. Leipzig.Google Scholar
Beyrich, E. 1845. Über einige böhmische Trilobiten. Reimer, Berlin, p. 1–48.Google Scholar
Billings, E. 1860. On some new species of fossils from the limestone near Point Levi opposite Quebec. Canadian Naturalist, Ottawa, 5:301–324.Google Scholar
Bright, R. C. 1959. A paleoecologic and biometric study of the Middle Cambrian trilobite Elrathia kingii. Journal of Paleontology 33:83–98.Google Scholar
Butts, C. 1926. The Paleozoic rocks. Geological Survey of Alabama Special Report 14:41–230.Google Scholar
Butts, C., and Gildersleeve, B. 1948. Geology and mineral resources of the Paleozoic area in northwest Georgia. Geological Survey of Georgia Bulletin 54, 176 p.Google Scholar
Chowns, T. M. 1977. Stratigraphy and economic geology of Cambrian and Ordovician rocks in Bartow and Polk Counties, Georgia. Georgia Geological Society 12th Annual Meeting Guidebook, 20 p.Google Scholar
Chowns, T. M. 1986. A reinterpretation of the Rome, Helena, and Gadsden faults in Alabama: a preliminary report, p. 51–60. In Benson, D. J. and Stock, C. W. (eds.), Depositional History of the Middle Ordovician of the Alabama Appalachians. Guidebook, 23rd Annual Field Trip, Alabama Geological Society.Google Scholar
Cressler, C. W. 1970. Geology and ground-water resources of Floyd and Polk Counties, Georgia. Geological Survey of Georgia Information Circular 39, 95 p.Google Scholar
Deiss, C. 1939. Cambrian stratigraphy and trilobites of northwestern Montana. Geological Society of America Special Paper 18:951–1026.CrossRefGoogle Scholar
Hall, J., and Whitfield, R. P. 1877. Paleontology. United States Geological Exploration of the Fortieth Parallel (King Survey), 4:198–302.Google Scholar
Harrington, H. J., and others. 1959. Treatise on Invertebrate Paleontology. Pt. O, Arthropoda 1. Geological Society of America and University of Kansas Press, Lawrence, 560 p.Google Scholar
Hasson, K. O., and Haase, C. S. 1988. Lithofacies and paleogeography of the Conasauga Group (Middle and Late Cambrian) in the Valley and Ridge Province of east Tennessee. Geological Society of America Bulletin, 100:234–246.Google Scholar
Hawle, I., and Corda, A. J. C. 1847. Prodrom einer monographic der böhmischen Trilobiten. Konigliche Böhmischen Gesellschaft Wissenschaft, Prague, Abhandlung 5, 176 p.Google Scholar
Hintze, L. F., and Robison, R. A. 1975. Middle Cambrian stratigraphy of the House, Wah Wah, and adjacent ranges in western Utah. Geological Society of America Bulletin, 86:881–891.Google Scholar
Howell, B. F., and others. 1944. Correlation of the Cambrian formations of North America. Bulletin of the Geological Society of America, 55:993–1004.Google Scholar
Jell, P. A., and Robison, R. A. 1978. Revision of a late Middle Cambrian trilobite faunule from northwestern Queensland. The University of Kansas Paleontological Contributions, Paper 90, 21 p.Google Scholar
Kobayashi, T. 1935. The Cambro-Ordovician formations and faunas of South Chosen. Paleontology, Pt. III. Cambrian faunas of South Chosen with special study on the Cambrian trilobite genera and families. Journal of the Faculty of Science, Imperial University of Tokyo, 4(2):49–344.Google Scholar
Lochman, C., and Duncan, D. 1944. Early Upper Cambrian faunas of central Montana. Geological Society America Special Paper 54, 181 p.Google Scholar
Lochman, C., and Wilson, J. L. 1958. Cambrian biostratigraphy in North America. Journal of Paleontology, 32:312–350.Google Scholar
Lorenz, T. 1906. Beiträge zur geologie und paleontologie von Ostasien, Pt. 2, PaleontologischerTeil. Deutsche Geologische Gesellschaft, 58:53–108.Google Scholar
McLemore, W. H., and Hurst, V. J. 1970. The carbonate rocks in the Coosa Valley area, Georgia. United States Department of Commerce Technical Assistance Study, Washington, D.C., 170 p.Google Scholar
Meek, F. B. 1870. Descriptions of fossils collected by the U.S. Geological Survey. Academy of Natural Sciences, Philadelphia, Proceedings for 1870, p. 56–64.Google Scholar
Meek, F. B. 1873. Preliminary paleontological report, consisting of lists and descriptions of fossils, with remarks on the rocks in which they were found. Sixth Annual Report, U.S. Geological Survey of Territories, p. 431–518.Google Scholar
Morris, S. F., and Fortey, R. A. 1985. Catalogue of the Type and Figured Specimens of Trilobita in the British Museum (Natural History). British Museum of Natural History, London, 199 p.Google Scholar
Öpik, A. A. 1967. The Mindyallan fauna of north-western Queensland. Australian Bureau of Mineral Resources Bulletin 74, 420 p.Google Scholar
Öpik, A. A. 1979. Middle Cambrian agnostids: systematics and biostratigraphy. Australian Bureau of Mineral Resources Bulletin 172, Vol. 1, 188 p., Vol. 2, 67 pl.Google Scholar
Palmer, A. R. 1954a. An appraisal of the Great Basin Middle Cambrian trilobites described before 1900. U.S. Geological Survey Professional Paper 264-D:55–86.Google Scholar
Palmer, A. R. 1954b. The faunas of the Riley Formation in central Texas. Journal of Paleontology 28:709–786.Google Scholar
Palmer, A. R. 1960. Early Late Cambrian stratigraphy of the United States. Journal of the Washington Academy of Sciences, 50:8–9.Google Scholar
Palmer, A. R. 1962. Glyptagnostus and associated trilobites in the United States. U.S. Geological Survey Professional Paper 374-F, 49 p.Google Scholar
Palmer, A. R. 1971. Cambrian of the Appalachian and eastern New England regions, eastern United States, p. 169–217. In Holland, C. H. (ed.), Cambrian of the New World. Wiley Interscience, New York.Google Scholar
Palmer, A. R., and Halley, R. B. 1979. Physical stratigraphy and trilobite biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the southern Great Basin. U.S. Geological Survey Professional Paper 1047, 131 p.Google Scholar
Pek, I., and Vaněk, J. 1971. Revision of the genera Peronopsis Hawle and Corda, 1847 and Diplorrhina Hawle and Corda, 1847 (Trilobita) from the Middle Cambrian of Bohemia. Věstnik Ústředniho Ústavu Geologického, 46:269–276.Google Scholar
Poulsen, C. 1927. The Cambrian, Ozarkian and Canadian faunas of northwest Greenland. Meddelelser Om Grønland, LXX:237–343.Google Scholar
Rasetti, F. 1951. Middle Cambrian stratigraphy and faunas of the Canadian Rocky Mountains. Smithsonian Miscellaneous Collections, 116, 270 p.Google Scholar
Rasetti, F. 1965a. Middle Cambrian trilobites from the Pleasant Hill Formation in central Pennsylvania. Journal of Paleontology, 39:1007.Google Scholar
Rasetti, F. 1965b. Upper Cambrian trilobite faunas of northeastern Tennessee. Smithsonian Miscellaneous Collections, 148, 125 p.Google Scholar
Raymond, P. E. 1924. New Upper Cambrian and Lower Ordovician trilobites from Vermont. Proceedings of the Boston Society of Natural History, 37:389–466.Google Scholar
Rees, M. N. 1986. A fault-controlled trough through a carbonate platform: the Middle Cambrian House Range embayment. Geological Society of American Bulletin, 97:1054–1069.Google Scholar
Resser, C. E. 1935. Nomenclature of some Cambrian trilobites. Smithsonian Miscellaneous Collections, 93:1–46.Google Scholar
Resser, C. E. 1936. Second contribution to nomenclature of Cambrian trilobites. Smithsonian Miscellaneous Collections, 95:1–29.Google Scholar
Resser, C. E. 1937. Third contribution to nomenclature of Cambrian trilobites. Smithsonian Miscellaneous Collections, 95:1–29.Google Scholar
Resser, C. E. 1938. Cambrian System (restricted) of the southern Appalachians. Geological Society of America Special Paper 15, 140 p.Google Scholar
Resser, C. E. 1942. Fifth contribution to the nomenclature of Cambrian trilobites. Smithsonian Miscellaneous Collections, 101:1–59.Google Scholar
Robison, R. A. 1964. Late Middle Cambrian faunas from western Utah. Journal of Paleontology, 38:510–566.Google Scholar
Robison, R. A. 1971. Additional Middle Cambrian trilobites from the Wheeler Shale of Utah. Journal of Paleontology, 45:796–804.Google Scholar
Robison, R. A. 1976. Middle Cambrian biostratigraphy of the Great Basin. Brigham Young University Geology Studies, 23:93–110.Google Scholar
Robison, R. A. 1982. Some Middle Cambrian agnostoid trilobites from western North America. Journal of Paleontology, 56:132–160.Google Scholar
Robison, R. A., and Hintze, L. F. 1975. Middle Cambrian Stratigraphy of the House, Wah Wah, and adjacent ranges in western Utah. Geological Society of America Bulletin, 86:881–891.Google Scholar
Salter, J. W. 1859. On fossils of the Lingula flags or “zone primordiale.” Geological Society of London, Quarterly Journal, 15:551–555.Google Scholar
Salter, J. W. 1864–1883. A monograph of the British trilobites. Paleontographic Society of London Monograph, p. 1–224.Google Scholar
Schwimmer, D. R. 1973. Middle Cambrian biostratigraphy of Montana and Wyoming. Unpubl. Ph.D. dissertation, SUNY Stony Brook and University Microfilms, 478 p.Google Scholar
Schwimmer, D. R. 1975. Quantitative taxonomy and biostratigraphy of Middle Cambrian trilobites from Montana and Wyoming. Mathematical Geology, 7:149–166.Google Scholar
Šnajdr, M. 1958. Trilobiti českého středního kambria. Rospravy Ustředniho Ústavu Geologického, 24:1–280.Google Scholar
Spalvins, K. 1968. Stratigraphy of the Conasauga Group in the vicinity of Adairsville, Georgia. Georgia Geological Survey Bulletin, 80:37–55.Google Scholar
Swinnerton, H. H. 1915. Suggestions for a revised classification of trilobites. Geological Magazine, New Ser., 2:407–496, 538–545.Google Scholar
Walcott, C. D. 1884. On the Cambrian faunas of North America. Bulletin of the U.S. Geological Survey, 10, 55 p.Google Scholar
Walcott, C. D. 1886. Second contribution to the studies on Cambrian faunas of North America. U.S. Geological Survey Bulletin, 30, 369 p.Google Scholar
Walcott, C. D. 1888. Cambrian fossils from Mt. Stephen, Northwestern Territory of Canada. American Journal of Science, Ser. 3, 36:161–166.Google Scholar
Walcott, C. D. 1889. Description of new genera and species of fossils from the Middle Cambrian. Proceedings of the U.S. National Museum, 11:441–446.Google Scholar
Walcott, C. D. 1908. Cambrian geology and paleontology 2. Cambrian trilobites. Smithsonian Miscellaneous Collections, 53:13–52.Google Scholar
Walcott, C. D. 1911. Cambrian geology and paleontology II, No. 4, Cambrian faunas of China. Smithsonian Miscellaneous Collections, 57:69–108.Google Scholar
Walcott, C. D. 1916a. Cambrian geology and paleontology III, No. 3, Cambrian trilobites. Smithsonian Miscellaneous Collections, 64:155–283.Google Scholar
Walcott, C. D. 1916b. Cambrian geology and paleontology III, No. 5, Cambrian trilobites. Smithsonian Miscellaneous Collections, 64:303–451.Google Scholar
Walcott, C. D. 1924–1925. Cambrian geology and paleontology V(2,3): Cambrian and Ozarkian trilobites. Smithsonian Miscellaneous Collections, 75:53–146.Google Scholar