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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
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

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
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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