Instituto de Fisiografía y Geología “Dr. A. Castellanos” (IFG)

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Examinando Instituto de Fisiografía y Geología “Dr. A. Castellanos” (IFG) por Materia "Ammonites"

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    First meeting of the Research Group for Paleobiology and biostratigraphy of the ammonites
    (Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario, 27/12/2012) Bert, Didier; Bersac, Stéphane
    The Laboratory of the “Research Group for Paleobiology and biostratigraphy of the Ammonites” (G.P.A; homepage: http://laboratoire.gpa.pagespersoorange. fr) is localised in Southeastern France, in the Alpes de HauteProvence near DignelesBains. This area is famous since the 19th century for its abundant ammonite localities and because of the Geological Reserve of HauteProvence, which protect them. The G.P.A. is organized around a working group of scientific colleagues from diverse countries and different research laboratories or universities, and of some amateur collaborators, all interested in ammonites and research on related issues. The “1s t Meeting” of the “Research Group for Paleobiology and biostratigraphy of the Ammonites” (G.P.A), organized by Didier Bert, was held in La MureArgens (France) from September 15 to 16, 2012. Eight communications were presented on various subjects about ammonites and nautiloids, their evolution, phylogeny, taxonomy and their use in biostratigraphy, especially with examples of the Upper Jurassic (Kimmeridgian) and the Lower Cretaceous (Barremian and Aptian).
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    Oxfordian belemnites and ammonites from Rostam Kola, Northern East Alborz, North Iran
    (Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario, 2013-12-27) Mariotti, Nino; Weis, Robert; Falahatgar, Mostafa; Parent, Horacio; Javidan, Mojtaba
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    The Tithonian (Upper Jurassic) ammonite succession at Portada Covunco, Neuquén-Mendoza Basin, Argentina
    (Instituto de Fisiografía y Geología, 2007) Parent, Horacio; Cocca, Sergio Eduardo
    The Tithonian rock succession (Vaca Muerta Fm.) of Portada Covunco consists of a lower part of little more than 100 m of shales and shaly limestones with ammonites of the genera “Lithacoceras”, Choicensisphinctes and Pseudolissoceras of the Mendozanus and Zitteli zones; the middle part consists of about 160 m of limestones and marly limestones with ammonites of the genera Aspidoceras and Catutosphinctes of the Proximus? and Internispinosum zones; ending with some 45 m of unfossiliferous mudstones and shaly marls. Catutosphinctes Leanza & Zeiss (Ataxioceratidae: Torquatisphinctinae), a genus widely distributed through all the Tithonian of the southern Neuquén-Mendoza Basin, occurs through the more calcareous upper part of the section, mainly the type species Catutosphinctes rafaeli Leanza & Zeiss.