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Upper Precambrian–Lower Cambrian biota from the northwest of Argentina*

Published online by Cambridge University Press:  01 May 2009

Florencio Gilberto Aceñolaza  and
Felipe Ramón Durand
Florencio Gilberto Aceñolaza
Affiliation:
Instituto Superior de Correlación Geológica, Universidad Nacional de Tucumán, Miguel Lillo 205, 4000 Tucuman, Argentina
Felipe Ramón Durand
Affiliation:
Instituto Superior de Correlación Geológica, Universidad Nacional de Tucumán, Miguel Lillo 205, 4000 Tucuman, Argentina
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Abstract

The principal characters of the biota from Upper Precambrian–Lower Cambrian rocks in the northwest of Argentina are described. It is possible to observe two groups: the trace fossils and the medusoid impressions. At the same time, a regional palaeogeographical analysis is attempted as well as a comparison with outcrops of similar age from the Gondwanaland area and from North America.

Type
Articles
Information
Geological Magazine , Volume 123 , Issue 4 , July 1986 , pp. 367 - 375
Copyright
Copyright © Cambridge University Press 1986

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Footnotes

*

This work is a contribution to the IUGS/UNESCO Project 192 ‘Development of the Cambrian–Ordovician in Latin America’ and has been developed with the support of the U.N.T. (Prog. 33), CONICET and Stiftung Volkswagenwerk.

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