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Late Cambrian and early Ordovician stem group chitons (Mollusca: Polyplacophora) from Utah and Missouri

Published online by Cambridge University Press:  20 May 2016

Michael J. Vendrasco  and
Bruce Runnegar
Michael J. Vendrasco
Affiliation:
Department of Earth and Space Sciences, University of California, Los Angeles 90095-1567,
Bruce Runnegar
Affiliation:
Department of Earth and Space Sciences, University of California, Los Angeles 90095-1567,
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Abstract

Abundant silicified shell plates (valves) of some of the oldest-known chitons were recovered from the Late Cambrian Notch Peak Formation of Utah. The chiton fauna is dominated numerically by Matthevia wahwahensis new species, but also includes another mattheviid, Eukteanochiton milleri new genus and species, and a preacanthochitonid, Orthriochiton utahensis new genus and species. Robustum from the Early Ordovician Gasconade Formation of Missouri is herein reinterpreted as a septemchitonid chiton, and Hemithecella, from the Late Cambrian-Early Ordovician of the eastern United States, is once again considered a mattheviid chiton. Mattheviid valves are unique among chitons in that they are massive, elongate, and contain one or two tunnels; these characteristics have led some to exclude this family from the Polyplacophora. However, mattheviids and other chitons share many valve characters, including granules, an apical shelf, a thin anterior margin, bilateral symmetry, three valve types, and a shell layer perforated with canals. Furthermore, recently described chiton valves from the Silurian of Gotland, the Ordovician of Wisconsin, and the Cambrian-Ordovician of Missouri are gradational between the Notch Peak mattheviid valves and those of younger polyplacophorans. Also, Matthevia wahwahensis n. sp. has valves with a flat apical area, allowing for valve overlap, and so provides a link between the unusual chiton Matthevia variabilis, which had nonoverlapping, spiky valves, and Chelodes, a less disputed chiton. Known fossil assemblages reveal that, along the coastline of Laurentia during the Cambrian-Ordovician, chitons were diverse, consisting of at least four families and with much variation in valve shape.

Type
Research Article
Information
Journal of Paleontology , Volume 78 , Issue 4 , July 2004 , pp. 675 - 689
Copyright
Copyright © The Paleontological Society 

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References

Atwater, D. E. 1979. Ontogeny and valve microstructure of Helminthochiton simplex (Raymond) (Polyplacophora) from the Allegheny Group (Pennsylvanian) of Ohio. Masters thesis, Bowling Green State University, Bowling Green, Ohio, 215 p.Google Scholar
Baxter, J. M., Sturrock, M. G., and Jones, A. M. 1990. The structure of the intrapigmented aesthetes and the properiostracum layer in Callochiton achatinus (Mollusca: Polyplacophora). Journal of Zoology (London), 220:447–468.Google Scholar
Bergenhayn, J. R. M. 1943. Preliminary notes on fossil polyplacophorans from Sweden. Geologiska Föreningens i Stockholms Förhandlingar, 65:297–303.Google Scholar
Bergenhayn, J. R. M. 1955. Die fossilen schwedischen loricaten nebst einer vorläufigen revision des systems der ganzen Klasse Loricata. Lunds Universitets Årsskrift, y Följid, Avdelningen 2, 51:1–47.Google Scholar
Bergenhayn, J. R. M. 1960. Cambrian and Ordovician loricates from North America. Journal of Paleontology, 34:168–178.Google Scholar
Boyle, P. R. 1974. The aesthetes of chitons II: fine structure in Lepidochitona cinereus (L.). Cell and Tissue Research, 153:383–398.Google Scholar
Butts, C. 1941. Geology of the Appalachian Valley in Virginia. Pt. II. Fossil plates and explanations. Virginia Geological Survey Bulletin, 52:1–271.Google Scholar
Cherns, L. 1998. Chelodes and closely related Polyplacophora (Mollusca) from the Silurian of Gotland, Sweden. Palaeontology, 41:545–573.Google Scholar
Cherns, L. 1999. Silurian chitons as indicators of rocky shores and lowstand on Gotland, Sweden. Palaios, 14:172–179.Google Scholar
Clarke, J. M. 1907. Some new Devonic fossils. Bulletin of the New York State Museum, 107:194–195.Google Scholar
Dalziel, I. W. D. 1997. Neoproterozoic-Paleozoic geography and tectonics: Review, hypothesis, environmental speculation. Geological Society of America Bulletin, 109:16–42.Google Scholar
Davidson, T., and King, W. 1874. On the Trimerellidae, a Paleozoic family of the palliobranchs or Brachiopoda. Quarterly Journal of the Geological Society of London, 30:124–172.Google Scholar
de Blainville, H. M. D. 1816. Prodrome d'une nouvelle distribution systèmatique du regne animal. Bulletin des Sciences, Societè Philomathique de Paris, p. 51–53, 93–97.Google Scholar
Dzik, J. 1986. Turrilepadida and other Machaeridia, p. 116–134. In Hoffman, A. and Nitecki, M. N. (eds.), Problematic Fossil Taxa. Oxford University Press, New York.Google Scholar
Fisher, D. W. 1962. Small conoidal shells of uncertain affinities, p. W98–W143. In Moore, R. C. (ed.), Treatise of Invertebrate Paleontology, Pt. W, Miscellanea. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Flower, R. H. 1968. Some El Paso guide fossils. New Mexico Bureau of Mines and Mineral Resources Memoir, 22:1–19.Google Scholar
Friedman, G. M. 1988. Spectacular domed microbial mats (cabbage heads) and oolitic limestone at Lester Park near Saratoga, New York. Northeastern Geology, 10:8–12.Google Scholar
Gould, A. A. 1846. On the shells collected by the United States Exploring Expedition, commanded by Charles Wilkes, U.S.N. Proceedings of the Boston Society of Natural History, 2:141–145.Google Scholar
Hallam, A. 1981. Facies Interpretation and the Stratigraphic Record. W. H. Freeman, San Francisco, California, 291 p.Google Scholar
Hanger, R. A., Hoare, R. D., and Strong, E. E. 2000. Permian Polyplacophora, Rostroconchia, and Problematica from Oregon. Journal of Paleontology, 74:192–198.Google Scholar
Hintze, L. F. 1988. Geologic History of Utah. Brigham Young University Geology Series, Number 7, 203 p.Google Scholar
Hintze, L. F., Taylor, M. E., and Miller, J. F. 1988. Upper Cambrian–Lower Ordovician Notch Peak Formation in Western Utah. U.S. Geological Survey Professional Paper, 1393:1–30.Google Scholar
Hoare, R. D. 2000a. Silurian Polyplacophora and Rostroconchia (Mollusca) from northern California. Proceedings of the California Academy of Sciences, 52:23–31.Google Scholar
Hoare, R. D. 2000b. Considerations on Paleozoic Polyplacophora including the description of Plasiochiton curiosus n. gen. and sp. American Malacological Bulletin, 15:131–137.Google Scholar
Hoare, R. D. 2002. New genera of Paleozoic polyplacophora. Journal of Paleontology, 76:570–573.Google Scholar
Hoare, R. D., and Mapes, R. H. 1985. New Mississippian and Pennsylvanian Polyplacophora (Mollusca) from North America. Journal of Paleontology, 59:875–881.Google Scholar
Hoare, R. D., and Mapes, R. H. 1989. Articulated specimen of Acutichiton allynsmithi (Mollusca, Polyplacophora) from Oklahoma. Journal of Paleontology, 63:251.Google Scholar
Hoare, R. D., Mapes, R. H., and Atwater, D. 1983. Pennsylvanian Polyplacophora (Mollusca) from Oklahoma and Texas. Journal of Paleontology, 57:992–1000.Google Scholar
Hoare, R. D., Sturgeon, M. T., and Hoare, T. B. 1972. Middle Pennsylvanian (Allegheny group) polyplacophora from Ohio. Journal of Paleontology, 46:675–680.Google Scholar
Hose, R. K. 1961. Physical characteristics of Upper Cambrian stromatolites in western Utah. U.S. Geological Survey Professional Paper, 424-D:D245–D248.Google Scholar
Kluessendorf, J. 1987. First report of Polyplacophora (Mollusca) from the Silurian of North America. Canadian Journal of Earth Sciences, 24:435–441.Google Scholar
Knight, J. B. 1941. Paleozoic gastropod genotypes. Geological Society of America Special Paper, 32, 510 p.Google Scholar
Marek, L. 1962. New polyplacophorid family Eochelodidae n. fam. in the Ordovician of Bohemia. Vestnik Ústredního ústavu geologického, 38:373–375.Google Scholar
Pojeta, J. Jr. 1980. Molluscan phylogeny. Tulane studies in Geology and Paleontology, 16:55–80.Google Scholar
Pojeta, J. Jr. and Runnegar, B. 1976. The paleontology of rostroconch mollusks and the early history of the phylum Mollusca. U.S. Geological Survey Professional Paper, 968, 88 p.Google Scholar
Pojeta, J. Jr.Eernisse, D. J., Hoare, R. D., and Henderson, M. D. 2003. Echinochiton dufoei: a new spiny Ordovician chiton. Journal of Paleontology, 77:646–654.Google Scholar
Raymond, P. E. 1910. A preliminary list of the fauna of the Allegheny and Conemaugh series in western Pennsylvania. Annals of the Carnegie Museum, 7:153–154.Google Scholar
Reed, F. R. C. 1911. A new fossil from Girvan. Geological Magazine, 8:337–340.Google Scholar
Rolfe, W. D. I. 1981. Septemchiton–a misnomer. Journal of Paleontology, 55:675–678.Google Scholar
Runnegar, B., and Pojeta, J. Jr. 1985. Origin and diversification of the Mollusca, p. 1–57. In Trueman, E. R. and Clarke, M. R. (eds.), The Mollusca. Vol. 10. Evolution. Academic Press, Orlando, Florida.Google Scholar
Runnegar, B., Pojeta, J. Jr., Taylor, M. E., and Collins, D. 1979. New species of the Cambrian and Ordovician chitons Matthevia and Chelodes from Wisconsin and Queensland: evidence for the early history of polyplacophoran mollusks. Journal of Paleontology, 53:1374–1394.Google Scholar
Sandberger, G., and Sandberger, F. 1856. Die Versteinerungen des Rheininschen Schichten Systems in Nassau. Kreidel and Niedner, Wiesbaden, 564 p.Google Scholar
Sanders, R. B. 1964. A new species of Septemchiton. Proceedings of the Oklahoma Academy of Science, 45:94–98.Google Scholar
Schmitt, J. G., and Boyd, D. W. 1981. Patterns of silicification in Permian pelecypods and brachiopods from Wyoming. Journal of Sedimentary Petrology, 51:1297–1308.Google Scholar
Scotese, C. R., and McKerrow, W. S. 1990. Revised world maps and introduction, p. 1–21. In McKerrow, W. S. and Scotese, C. R. (eds.), Palaeozoic Palaeogeography and Biogeography. Geological Society of London Memoir, 12.Google Scholar
Shapiro, R. S. 1994. Stromatolites and thrombolites of the Upper Cambrian Notch Peak Limestone, House Range, Utah. Geological Society of America Abstracts with Programs (Cordilleran Section), 26(2):90–91.Google Scholar
Sirenko, B. I. 1997. The importance of the articulamentum for the taxonomy of chitons. Ruthenica, 7:2–24.Google Scholar
Sirenko, B. I., and Starobogatov, Y. 1977. On the systematics of Paleozoic and Mesozoic chitons. Paleontological Journal, 3:285–293.Google Scholar
Smith, A. G. 1960. Amphineura, p. I41–I76. In Moore, R. C. (ed.), Treatise of Invertebrate Paleontology, Pt. I, Mollusca 1. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Smith, A. G. 1971. The Carboniferous genus Glyptochiton de Koninck, 1883 (Mollusca: Polyplacophora). Proceedings of the California Academy of Sciences, 37:567–574.Google Scholar
Smith, A. G., and Hoare, R. D. 1987. Paleozoic Polyplacophora: a checklist and bibliography. Occasional Papers of the California Academy of Sciences, 146, 71 p.Google Scholar
Smith, A. G., and Toomey, D. F. 1964. Chitons from the Kindblade Formation. Oklahoma Geological Survey Circular, 66, 41 p.Google Scholar
Stewart, J. H. 1991. Latest Proterozoic and Cambrian rocks of the western United States–an overview, p. 13–38. In Cooper, J. and Stevens, C. (eds.), Paleozoic Paleogeography of the Western United States II (Pacific Section SEPM, Volume 67).Google Scholar
Stinchcomb, B. L. 1965. New Mollusca of the Potosi and Eminence Formations (Cambrian). M. A. thesis, Washington University, St. Louis, Missouri, 53 p.Google Scholar
Stinchcomb, B. L. 1978. The paleontology and biostratigraphy of the Lower Ordovician Gasconade Formation of Missouri. Ph.D. dissertation, University of Missouri-Rolla, 183 p.Google Scholar
Stinchcomb, B. L. 1986. New Monoplacophora (Mollusca) from Late Cambrian and Early Ordovician of Missouri. Journal of Paleontology, 60:606–626.Google Scholar
Stinchcomb, B. L., and Darrough, G. 1995. Some molluscan problematica from the Upper Cambrian-Lower Ordovician of the Ozark uplift. Journal of Paleontology, 69:52–65.Google Scholar
Sturrock, M. G., and Baxter, J. M. 1993. The ultrastructure of the aesthetes of Leptochiton asellus (Polyplacophora: Lepidopleurina). Journal of Zoology (London), 230:49–61.Google Scholar
Suek, D. H., and Knaup, W. W. 1979. Paleozoic carbonate buildups in the Basin and Range Province, p. 245–257. In Newman, G. W. (ed.), Basin and Range Symposium and Great Basin Field Conference. Rocky Mountain Association of Geologists, Denver, Colorado.Google Scholar
Taylor, M. E., Repetski, J. E., and Wilson, L. A. 1981. Depositional environments and molluscan paleoecology of the Upper Cambrian-Lower Ordovician Ajax Dolomite, Northern Stansibury Mountains, Utah, p. 132–138. In Taylor, M. E. and Palmer, A. R. (eds.), Cambrian Stratigraphy and Paleontology of the Great Basin and Vicinity, Western United States, Second International Symposium on the Cambrian System, Guidebook for Field Trip 1.Google Scholar
Ulrich, E. O., and Bridge, J. 1941. Hemithecella expansa, p. 19–20. In Butts, C. (eds.), Geology of the Appalachian Valley in Virginia, Pt. 2. Virginia Geological Survey Bulletin, 52.Google Scholar
Van Belle, R. A. 1983. The systematic classification of the chitons (Mollusca: Polyplacophora). Informations de la Societè Belge de Malacologie, 11:1–178.Google Scholar
Vendrasco, M. J. 1999. Early evolution of the Polyplacophora (chitons). Ph.D. dissertation, University of California, Los Angeles, 232 p.Google Scholar
Walcott, C. D. 1885. Note on some Paleozoic pteropods. American Journal of Science, 30:17–21.Google Scholar
Walcott, C. D. 1886. Second contribution to the studies of the Cambrian faunas of North America. U.S. Geological Survey Bulletin, 30:1–369.Google Scholar
Walcott, C. D. 1908. Nomenclature of some Cambrian Cordilleran formations. Smithsonian Miscellaneous Collections, 53:1–12.Google Scholar
Walcott, C. D. 1912. New York Potsdam-Hoyt fauna. Smithsonian Miscellaneous Collections, 57:251–304.Google Scholar
Walcott, C. D. 1914. Cambrian geology and paleontology. III., No. 2. Pre-Cambrian Algonkian algal flora. Smithsonian Miscellaneous Collections, 64:77–156.Google Scholar
Yochelson, E. L. 1966. Mattheva, a proposed new class of mollusks. U.S. Geological Survey Professional Paper, 523-B:B1–B11.Google Scholar
Yochelson, E. L., McAllister, J. F., and Reso, A. 1965. Stratigraphic distribution of the Late Cambrian mollusk Matthevia Walcott 1885. U.S. Geological Survey Professional Paper, 525-B:B73–B78.Google Scholar