“…Given the scarce archaeological knowledge available for the area until recently, different lines of research are being conducted in order to build a data-set that allows the discussion of these objectives. Along these lines, recent studies including analysis of radiocarbon chronology, subsistence, organisation of lithic technology, mobility and home ranges, settlement systems, human burials and funerary practices have been conducted (Martínez & Figuerero Torres, 2000;Armentano, 2004aArmentano, ,b, 2008Bayó n et al, 2004;Martínez, 2004Martínez, , 2008Martínez et al, 2005Martínez et al, , 2006aMartínez et al, ,b, 2007Prates et al, 2006;Stoessel, 2006Stoessel, , 2007. As previously mentioned, data from the middle basin of the Negro River are also included (Prates, 2007) (see Figure 1).…”