“…The pots were thought to have served for the processing and storage of fats (Cassiodoro and Tessone 2014), increased use of plants for food (Gómez Otero 2006), preparing fermented drinks and cooking food, based on ethnohistorical written sources (Prates et al 2016). It is interesting to note that while δ 13 C and δ 15 N isotopic analysis of organic residues from ceramics from the central plateau of Patagonia demonstrates the processing and cooking of animals from the arid steppe (Cassiodoro and Tessone 2014), fatty acid, Sanso 1996;Rapoport et al 1999;Zuloaga and Morrone 1999;Andersson and Andersson 2000;SIB 2002;Garralla and Bulacio 2011;Muñoz-Schik and Moreira-Muñoz 2013;Bulacio et al 2017); b-c, general view of Monte Loayza Site 3; 1, cueva de Haichol; 2, Sendero de Interpretación rockshelter; 3, Campo Moncada 2 rockshelter isotopic and chromatographic results from potsherd residues from the lower course of the Río Colorado, in northern Patagonia, and from the coasts, suggest mainly the processing and cooking of plant foodstuffs, and to a lesser extent, the cooking of meat of land animals such as Lama guanicoe (guanaco) or marine fish, as well as the extraction or storage of fats from seal-like pinnipeds or fish (Gómez Otero 2006;Schuster 2014;Stoessel et al 2015).…”