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First Clarkeia and Heterorthella (Brachiopoda; Lower Silurian) occurrence from the Paraná Basin in eastern Paraguay

Published online by Cambridge University Press:  20 May 2016

A. J. Boucot ,
Jose Henrique G. de Melo ,
Eugenio V. Santos Neto  and
Sven Wolff
A. J. Boucot
Affiliation:
1Department of Zoology, Oregon State University, Corvallis 97331
Jose Henrique G. de Melo
Affiliation:
2Petrobrás/Cenpes/Divex, Cidade Universitária, Ilha do Fundão, 21910 Rio de Janeiro, RJ, Brazil
Eugenio V. Santos Neto
Affiliation:
2Petrobrás/Cenpes/Divex, Cidade Universitária, Ilha do Fundão, 21910 Rio de Janeiro, RJ, Brazil
Sven Wolff
Affiliation:
3Petrobrás Nexpar, R. Padre Camargo, 261–285, 80060 Curitiba, Brazil
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Extract

The existence of the Malvinokaffric Realm during the Silurian (Boucot, 1990) is based on the presence of three endemic brachiopod genera (Anabaia, Clarkeia, Heterorthella), and their absence in the coeval North Silurian Realm, where roughly 100 other brachiopod genera Aegiria to Zygospiraella are present. Within the Malvinokaffric Realm the vast reaches of the Paraná Basin, covering an area almost equivalent to the United States east of the Mississippi River, has previously yielded only Anabaia, and that from a single area. In light of this, the recognition of both Clarkeia and Heterorthella within the confines of the Paraná Basin is noteworthy.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 65 , Issue 3 , May 1991 , pp. 512 - 514
Copyright
Copyright © The Paleontological Society 

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References

Babcock, L. E., Gray, J., Boucot, A. J., Himes, G. T., and Siegel, P. K. 1990. First Silurian conulariids from Paraguay. Journal of Paleontology, 64:897–902.Google Scholar
Berry, W. B. N., and Boucot, A. J. (eds). 1972. Correlation of the South American Silurian rocks. Geological Society of America Special Paper 133, 59 p.Google Scholar
Boucot, A. J. 1975. Reclassification of Australostrophia mesembria (Brachiopoda, Devonian). Journal of Paleontology, 49:633–637.Google Scholar
Boucot, A. J. 1990. Silurian biogeography, p. 191–196. In McKerrow, W. S. and Scotese, C. R. (eds.), Palaeozoic Palaeogeography and Biogeography. Geological Society Memoir No. 12.Google Scholar
Boucot, A. J., Grahn, Y., and Melo, J. H. G.In press. South American marine Silurian communities. In Boucot, A. J. and Lawson, J. D. (eds.), Final Report of Project Ecostratigraphy. Cambridge University Press, Cambridge.Google Scholar
Cocks, L. R. M. 1972. The origin of the Silurian Clarkeia shelly fauna of South America, and its extension to West Africa. Palaeontology, 15:623–630.Google Scholar
Drot, J., Lardeux, H., and le Page, A. 1979. Sur la découverte de Silurien supérieur au sommet de la Série de Youkounkoun au Senégal Oriental: implications paléogeographiquies et structurales. Société Géologique et Mineralogique de Bretagne, Bulletin, Série C, Tome X, Fascicle 1, 1978:7–30.Google Scholar
Gray, J., Colbath, G. K., de Faria, A., and Rohr, D. M. 1985. Silurian-age fossils from the Paleozoic Paraná Basin, southern Brazil. Geology, 13:521–525.Google Scholar
Harper, C. W. Jr., and Boucot, A. J. 1978. The Stropheodontacea, Pt. I, Leptostrophiidae, Eostropheodontidae and Strophonellidae. Palaeontographica, Abteilung A, 161:55–118.Google Scholar
Harper, C. W. Jr., and Walmsley, V. G. 1969. The rhipidomellid brachiopod subfamily Heterorthinae and Platyorthinae (new). Journal of Paleontology, 43:74–92.Google Scholar
Harrington, H. J. 1950. Geología del Paraguay Oriental. Facultad de Ciencias Extactas, Universidad de Buenos Aires, Contribuciones Cientificas, Serie E, Geologia, 1:1–82.Google Scholar
Harrington, H. J. 1972. Silurian of Paraguay, p. 41–50. In Berry, W. B. N. and Boucot, A. J. (eds.), Correlation of the South American Silurian Rocks. Geological Society of American Special Paper 133.Google Scholar
Jaeger, H., Havlicek, V., and Schönlaub, H. P. 1975. Biostratigraphie der Ordovizium/Silurian-Grenze in den Sudalpen—Ein Beitrag zur Diskussion um die Hirnantia-Fauna. Verhandlungen der Geologischen Bundesanstalt, Jahrgang 1975, 4:271–289.Google Scholar
Laubacher, G., Boucot, A. J., and Gray, J. 1982. Additions to Silurian stratigraphy, lithofacies, biogeography and paleontology of Bolivia and southern Peru. Journal of Paleontology, 56:1138–1170.Google Scholar
Melo, J. H. G. de, and Boucot, A. J. 1990. Harringtonina is Anabaia (Brachiopoda, Silurian, Malvinokaffric Realm). Journal of Paleontology, 64:363–366.Google Scholar
Racheboeuf, P. R., and Villeneuve, M. 1989. Australostrophia senegalensis n. sp.: first chonostrophiid brachiopod (Chonetacea) from NW Africa. Implications for the northwestern Gondwanaland margin. Neues Jahrbuch für Geologie und Paläontologie Monatsheft, 12:737–748.Google Scholar
Wood, G. D., Miller, M. A., Sawicki, D. A., and Shineldecker, C. L. 1989. Chitinozoans and microplankton from the Silurian Vargas Peña Shale (Itacurubí Group), Chaco Basin, Paraguay. C.I.M.P. Newsletter 38:6[abstract presented at the AASP Houston Meeting, Nov. 1988].Google Scholar