Río Luján archaeological site (Campana, Buenos Aires province, Argentina), is an unavoidable reference for continental lower Paraná wetland zooarchaeology. Recent work by other authors has focalized on reanalysis of faunal remains, but cervids have not been included in those revisions. Taking in count new methodological criteria and theoretical perspectives in zooarchaeology, in this work we present reanalysis result of cervids collection. Results points that cervid hunting, especially of Blastocerus dichotomus (marsh deer), constituted the main activity for subsistence, employing an unbiased transport strategy. We also suggest, considering recent dating of the site, that cervids carcasses would have been exploited intensively for bone marrow and probably bone grease rendering since initial occupation of the area. [ABSTRACT FROM AUTHOR]