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Assessing the biodiversity of Ordovician ostracods from the Argentine Precordillera

Published online by Cambridge University Press:  14 July 2015

María José Salas
María José Salas*
Affiliation:
Centro de Investigaciones Paleobiológicas CIPAL, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avenida Vélez Sarsfield 299, 5000 Córdoba, Argentina,
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Abstract

Ostracod faunas from the Lower to Middle Ordovician rocks of the Argentine Precordillera Basin (Gualcamayo and Las Aguaditas Formations) are studied. A new family, Garcianidae, is erected. One new genus, Jeanvannieria, and six species are recognized, two of which are new (Jachalipisthia bicornata and Jeanvannieria bulbosa). The diversity and composition of the Precordilleran ostracods is evaluated on the basis of previous taxonomic analysis and the fauna studied here. The diversity is moderate, with a peak of 50 species during the early Caradoc. The composition of the fauna is characterized by the dominance of podocopes with a high percentage of binodicopes and a lack of palaeocopes, which is in agreement with a deep shelf environment. The carbonate slope setting of the Las Aguaditas Formation is the deepest environment yet found with Ordovician ostracods and records a relatively diverse fauna. The presence of Ectoprimitioides suggests biogeographic affinities between the Precordillera and Laurentia. The rest of the fauna contains a high percentage of endemic genera and a mixture of genera with several affinities, Baltic, peri-Gondwanan, and Australian.

Type
Research Article
Information
Journal of Paleontology , Volume 81 , Issue 6 , November 2007 , pp. 1442 - 1453
Copyright
Copyright © The Paleontological Society 

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References

Albanesi, G. L., Hünicken, M. A., and Barnes, C. R. 1998. Bioestratigrafía de conodontes de las secuencias ordovícicas del cerro Potrerillo, Precordillera Central de San Juan, República Argentina. Actas de la Academia Nacional de Ciencias, 12:7–72.Google Scholar
Astini, R. A. 1992. Tectofacies ordovícicas y evolutión de la cuenca Eopaleozoica de la Precordillera Argentina. Estudios Geológicos, 48:315–327.Google Scholar
Astini, R. A. 1994. Geología e interpretación de la Formación Gualcamayo en su localidad clásica (suroeste de Guandacol y Cordón de Perico-Potrerillo), Precordillera septentrional. Revista de la Asociación Geológica Argentina, 49:55–70.Google Scholar
Astini, R. A. 1995. Sedimentología de la Formación Las Aguaditas (talud carbonático) y evolución de la cuenca precordillerana durante el Ordovícico medio. Revista de la Asociación Geológica Argentina, 50:143–164.Google Scholar
Astini, R. A., Benedetto, J. L., and Vaccari, N. E. 1995. The Early Paleozoic evolution of the Argentine Precordillera as a Laurentian rifted, drifted and collided terrane: A geodynamic model. Geological Society of America Bulletin, 107:253–273.2.3.CO;2>CrossRefGoogle Scholar
Becker, G. 1994. A remarkable Ordovician ostracod fauna from Orphan Knoll, Labrador Sea. Scripta Geologica, 107:1–25.Google Scholar
Benedetto, J. L. 1993. La hipótesis de la aloctonía de la Precordillera Argentina: un test estratigráfico y bioestratigráfico. 12nd Congreso Geológico Argentino y 2nd Congreso de Exploración de Hidrocarburos, Mendoza, 3:375–384.Google Scholar
Benedetto, J. L. 1995. Braquiópodos del Silúrico temprano (Llandoveriano) Malvinocáfrico, Formación La Chilca, Precordillera Argentina. Geobios, 28:425–457.CrossRefGoogle Scholar
Benedetto, J. L. 1997. Una nueva asociación de braquiópodos del Llandoveriano temprano de la base de la Formación La Chilca, Mogotes Azules, Precordillera de San Juan. Reunión Anual de Comunicaciones, Asociación Paleontológica Argentina. Ameghiniana, 34:115.Google Scholar
Benedetto, J. L. 1998. Early Palaeozoic brachiopods and associated shelly faunas from western Gondwana: Its bearing on the geodynamic history of the pre-Andean margin, p. 57–83. In Rapela, C. W. and Pankhurst, R. (eds.), The Proto-Andean margin of Gondwana. Geological Society of London, Special Publication 142.Google Scholar
Benedetto, J. L., Sánchez, T. M., Carrera, M. G., Brussa, E. D., and Salas, M. J. 1999. Paleontological constraints on successive paleogeographic positions of Precordillera terrane during the early Paleozoic, p. 21–42. In Ramos, V. A. and Keppie, J. D. (eds.), Laurentia-Gondwana Connections before Pangea. Geological Society of America Special Paper, 336.Google Scholar
Berdan, J. M. 1988. Middle Ordovician (Whiterockian) palaeocopid and podocopid ostracodes from the Ibex area, Millard County, western Utah. New Mexico Bureau of Mines & Mineral Resources Memoir, 44:273–301.Google Scholar
Bouček, B. 1936. Die ostracoden des Böhmischen Ludlows (Stufe). Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, 76:31–98.Google Scholar
Braddy, S. J., Tollerton, V. P., Racheboeuf, P. R., and Schallreuter, R. E. L. 2004. Eurypterids, phyllocarids, and ostracodes, p. 255–265. In Webby, B. D., Paris, F., Droser, M. L., and Percival, I. G. (eds.), The Great Ordovician Biodiversification Event. Columbia University Press, New York.CrossRefGoogle Scholar
Brussa, E. D. 1996. Las graptofaunas ordovícicas de la Formación Las Aguaditas, Precordillera de San Juan, Argentina. Parte I: Familias Thamnograptidae, Dichograptidae, Abrograptidae y Glossograptidae. Ameghiniana, 33:421–434.Google Scholar
Cañas, F. L. 1999. Facies and sequences of the Late Cambrian-Early Ordovician carbonates of the Argentine Precordillera: A stratigraphic comparison with Laurentian platforms, p. 43–62. In Ramos, V. A. and Keppie, J. D. (eds.), Laurentia-Gondwana Connections before Pangea. Geological Society of America Special Paper 336.CrossRefGoogle Scholar
Cech, N. and Carrera, M. G. 2002. Dinámica de las comunidades arenigianas de la Formación San Juan (Ordovícico), Precordillera Argentina. Ameghiniana, 39:21–40.Google Scholar
Chatterton, B. D., Edgecombe, G., Vaccari, N. E., and Waisfeld, B. 1997. Ontogeny and relationships of the Ordovician odontopleurid trilobite Ceratocara, with new species from Argentina and New York. Journal of Paleontology, 71:108–125.CrossRefGoogle Scholar
Chatterton, B. D., Edgecombe, G., Vaccari, N. E., and Waisfeld, B. 1998. Ontogeny and systematics of Toernquistiidae (Trilobita, Proetida) from the Ordovician of the Argentine Precordillera. Journal of Paleontology, 72:273–303.CrossRefGoogle Scholar
Copeland, M. J. 1982. Bathymetry of Early Middle Ordovician (Chazy) Ostracodes, lower Esbataottine Formation, District of Mackenzie. Geological Survey of Canada, bulletin, 347:1–39.Google Scholar
Edgecombe, G., Chatterton, B. D., Vaccari, N. E., and Waisfeld, B. 1997. Ontogeny of the Proetoid trilobite Stenoblepharum Owens, 1973, and relationships of a new species from the upper Ordovician of Argentina. Journal of Paleontology, 71:419–433.CrossRefGoogle Scholar
Harris, R. W. 1957. Ostracoda of the Simpson Group. Oklahoma Geological Survey Bulletin, 75:333 p.Google Scholar
Henningsmoen, G. 1953. Classification of Paleozoic straight-hinge ostracods. Norske Geologische Tidsskrift, 31:185–288.Google Scholar
Kraft, J. C. 1962. Morphologic and systematic relationships of some Middle Ordovician Ostracoda. Geological Society of America Memoir 86:104 p.Google Scholar
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2, 222 p.Google Scholar
Neckaja, A. I. 1966. Ostracody ordovika i silura SSSR (semejstva Schmidtellidae, Longisculidae i nekotorye novye vidy drugich semejstv). Trudy Vnigri, 251:104 p. [In Russian]Google Scholar
Pokorný, V. 1954. A contribution to the taxonomy of the Paleozoic ostracods. Sborník Ústredního Ustavu Geologického, 20:213–232.Google Scholar
Rickards, R. B., Brussa, E., Toro, B., and Ortega, G. 1996. Late Ordovician - Silurian graptolites from the Argentine Precordillera. Geological Journal, 31:101–122.3.0.CO;2-V>CrossRefGoogle Scholar
Rossi De García, E. 1975. Cuyanocopina, un nuevo suborden de Ostracoda Paleozoico. 1st Congreso Argentino de Paleontología y Bioestratigrafía, Tucumán, 1:59–76.Google Scholar
Rossi De García, E. and Proserpio, C. 1978. Ostrácodos Ordovícicos de la Precordillera de San Juan (Hoja 18c-San José de Jáchal). Ameghiniana, 15:391–405.Google Scholar
Salas, M. J. 2002a. Ostrácodos binodicopas del Ordovícico de la Precordillera de San Juan, Argentina. Ameghiniana, 39:41–58.Google Scholar
Salas, M. J. 2002b. Ostrácodos podocopas del Ordovícico de la Precordillera de San Juan, Argentina. Ameghiniana, 39:129–149.Google Scholar
Salas, M. J. 2003a. Ostracods, p. 411–440. In Benedetto, J. L. (ed.), Ordovician fossils of Argentina. Secretaría de Ciencia y Tecnología, Universidad Nacional de Córdoba.Google Scholar
Salas, M. J. 2003b. Ostrácodos paleocopas, leiocopas y eridostracas del Ordovícico de la Precordillera de San Juan, Argentina. Ameghiniana, 40:345–360.Google Scholar
Scott, H. W. 1961. Systematic description, p. Q99–Q421. In Moore, R. C. and Pitrat, C. W. (eds.), Treatise on Invertebrate Paleontology. Pt. Q. Arthropoda 3, Crustacea Ostracoda. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Schallreuter, R. E. L. 1966. Drepanellacea (Ostracoda, Beyrichiida) aus mittelordovizischen Backsteinkalkgeschieben I. Klimphores planus g. n. sp. n. und Vaivanovia hiddenseensis g. n. sp. n. Berichte Deutschen Gesellschaft Geologischen Wissenschaften, 11:393–402.Google Scholar
Schallreuter, R. E. L. 1968. Ordovizische Ostracoden mit geradem Scholoßrand und konkaven Ventrabrand. Wissenschaftliche Zeitschrift der Ernst Moritz Arndt-Universität Greifswald, 127–152.Google Scholar
Schallreuter, R. E. L. 1972. Drepanellacea (Ostracoda, Beyrichiida) aus mittelordovizischen Backsteinkalkgeschieben IV. Laterophores hystrix sp. n., Pedomphalella germanica sp. n. und Easchmidtella fragosa (Neckaja). Berichte Deutschen Gesellschaft Geologischen Wissenschaften, 17:139–145.Google Scholar
Schallreuter, R. E. L. 1980. Ostrakoden aus dem Sularpschiefer (Mittelordoviz) von Schonen, Schweden. Palaeontographica, Abt. A 169:1–27.Google Scholar
Schallreuter, R. E. L. 1983. On Reginea reginae Schallreuter gen. et sp. nov. Stereo-Atlas of Ostracod Shells, 10:21–24.Google Scholar
Schallreuter, R. E. L. 1994. On Garciana jaanussoni (Rossi de García y Proserpio). Stereo-Atlas of Ostracod Shells, 21:123–126.Google Scholar
Schallreuter, R. E. L. 1995a. On Inversibolbina lehnerti Schallreuter gen. et sp. nov. Stereo-Atlas of Ostracod Shells, 22:21–24.Google Scholar
Schallreuter, R. E. L. 1995b. On Harpabollia argentina Schallreuter sp. nov. Stereo-Atlas of Ostracod Shells, 22:82–85.Google Scholar
Schallreuter, R. E. L. 1995c. On Spinodiphores praepletus Schallreuter gen. et sp. nov. Stereo-Atlas of Ostracod Shells, 22:74–77.Google Scholar
Schallreuter, R. E. L. 1995d. On Ansipe anseripediculus Schallreuter gen. et sp. nov. Stereo-Atlas of Ostracod Shells, 22:78–81.Google Scholar
Schallreuter, R. E. L. 1996. Ordovizische Ostracoden Argentiniens II. Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 79:139–169.Google Scholar
Schallreuter, R. E. L. 1999. Eine neue Ostrakodenfauna aus dem Ordoviz Argentiniens. Greifswalder Geowissenschaftliche Beiträge, 6:55–71.Google Scholar
Schallreuter, R. E. L. and Hinz Schallreuter, I. 1998. Ein Geschiebe aus Armorica im Thüringer Lederschiefer (Ordoviz). Archiv für Geschiebckunde, 2:265–360.Google Scholar
Schallreuter, R. E. L. and Hinz Schallreuter, I. 1999. Altpaläozoische Ostrakoden mit Stoppern. [Lower Palaeozoic Ostracodes with Stop-pegs]. Neues Jahrbuch für Geologie und Paläontologie, Mh., 4:227–242.CrossRefGoogle Scholar
Siveter, D. 1984. Habitats and mode of life of Silurian ostracodes. Special Papers in Palaeontology, 32:71–85.Google Scholar
Swain, F. M. 1957. Early middle Ordovician Ostracoda of the eastern United States. Pt. I. Stratigraphic data and description of Leperditiidae, Aparchitidae and Leperditellidae. Journal of Paleontology, 31:528–570.Google Scholar
Thomas, W. A. and Astini, R. A. 1996. The Argentine Precordillera: A traveller from the Ouachita embayment of North American Laurentia. Science, 273:752–757.CrossRefGoogle ScholarPubMed
Thomas, W. A. and Astini, R. A. 2003. Ordovician accretion of the Argentine Precordillera terrane to Gondwana: A review. Journal of South American Earth Sciences, 16:67–79.CrossRefGoogle Scholar
Ulrich, E. O. and Bassler, R. S. 1923. Paleozoic Ostracoda: Their morphology, classification and occurrence. Maryland Geological Survey, Silurian: 271–391.Google Scholar
Vannier, J., Siveter, D., and Schallreuter, R. E. L. 1989. The composition and palaeogeographical significance of the Ordovician ostracode faunas of Southern Britain, Baltoscandia and Ibero-Armorica. Palaeontology, 32:163–222.Google Scholar
Waisfeld, B. G., Vaccari, N. E., Chatterton, B. D., and Edgecombe, G. 2001. Systematics of Shumardiidae (Trilobita), with new species from the Ordovician of Argentina. Journal of Paleontology, 75:827–859.2.0.CO;2>CrossRefGoogle Scholar
Waisfeld, B. G, Sánchez, T. M., Benedetto, J. L., and Carrera, M. G. 2003. Early Ordovician (Arenig) faunal assemblages from western Argentina: Biodiversification trends in different geodynamic and palaeographic settings. Palaeogeography, Palaeoclimatology, Palaeoecology, 196:343–373.CrossRefGoogle Scholar
Williams, M. 1990. Ostracoda (Arthropoda) of the middle Ordovician Simpson Group, Oklahoma, U.S.A. Unpublished Ph.D.University of Leicester, U.K.192 p.Google Scholar
Williams, M., Floyd, J. D., Miller, C. G., and Siveter, D. J. 2001a. Scottish Ordovician ostracodes: A review of their palaeoenvironmental, biostratigraphical and palaeobiogeographical significance. Transactions of the Royal Society of Edinburgh: Earth Sciences, 91:499–508.CrossRefGoogle Scholar
Williams, M., Stone, P., Siveter, D. J., and Taylor, P. 2001b. Upper Ordovician ostracods from the Cautley district, northern England: Baltic and Laurentian affinities. Geological Magazine, 138:589–607.CrossRefGoogle Scholar
Williams, M., Floyd, J. D., Salas, M. J., Siveter, D. J., Stone, P., and Vannier, J. 2003. Patterns of ostracod migration for the ‘North Atlantic’ region during the Ordovician. Palaeogeography, Palaeoclimatology, Palaeoecology, 195:193–228.CrossRefGoogle Scholar