AMONOIDEOS Y BIVALVOS BERRASIANOS DE LA CANTERA TRES LAGUNAS, CHUBUT

Authors

  • Eduardo B. Olivero

Abstract

BERRIASIAN AMMONITES AND BIVALVES FROM TRES LAGUNAS QUARRY, CHUBUT. A molluscan fauna that includes Neocosmoceras ornatum sp. nov., Neocosmoceras sp. and Megatrigonia aff. conocardiifonnis (Krauss) from Tres Lagunas Quarry (Chubut) is described. On the basis of the presence of the ammonite genus Neocosmoceras Blanchet, known to be restricted to Occitanica and Boissieri Zones of the Berriasian in the SE of France, a more reliable correlation of the Tres Lagunas beds with the European Stages System is established. Lithological and structural features of the fossiliferous beds are briefly described.

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Published

2013-10-05

Issue

Vol. 20 No. 1-2

Section

Articles

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How to Cite

AMONOIDEOS Y BIVALVOS BERRASIANOS DE LA CANTERA TRES LAGUNAS, CHUBUT. (2013). Ameghiniana, 20(1-2), 11-20. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/1787

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