Carbon, nitrogen and sulphur isotope data of archaeological fish and mammal bone collagen from Lithuania

Until relatively recently, stable sulphur isotope analysis of bone collagen was seldom undertaken in bioarchaeological research. With increasing frequency, its application has proven useful in reconstructing palaeodiets and palaeoecologies, as well as identifying potential migration and mobility patterns. Here, sulphur (δ³⁴S) isotope analysis, together with carbon (δ¹³C) and nitrogen (δ¹⁵N), was performed on six fish and 34 mammal bone collagen samples from 14 prehistoric sites in Lithuania dating from the Late Mesolithic (ca. 7000-5000 cal BC) to the Late Bronze Age (ca. 1100-500 cal BC). We present the first δ³⁴S data from Lithuania, including coupled δ¹³C and δ¹⁵N data, offering a crucial dataset for future research to explore spatial and temporal variability in the region and beyond.