Bert, DidierBersac, Stéphane2013-01-182013-01-1827/12/2012Bert D. & Bersac S. (editors), 2012. First meeting of the Research Group for Paleobiology and biostratigraphy of the ammonites. Boletín del Instituto de Fisiografía y Geología 82: 9-20. Rosario, 28-12-2012. ISSN 1666-115X1666-115Xhttp://hdl.handle.net/2133/2215The 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).engopenAccessAmmonitesNautiloidsartículo