Parent, Horacio2008-05-022007-06-142007-06-142008-05-0220061666-115Xhttp://hdl.handle.net/2133/6374132375 bytesapplication/pdfengopenAccessWestern South Americalate CallovianOxfordianAmmonitesBiostratigraphyBiogeographyAmérica del Sur occidentalCaloviano tardíoOxfordianoAmonitesBioestratografíaBiogeografíaOxfordian and late Callovian ammonite faunas and biostratigraphy of the Neuquén-Mendoza and Tarapacá basins (Jurassic, Ammonoidea, Western South America)article