Looking inside rodent teeth: δ18O analysis used to reconstruct the environment of MIS 3 in Northeastern Iberia

International audience; Small mammals (insectivores, bats and rodents) are one of the most useful tools to reconstruct Quaternary environment. Recent studies have demonstrated the relation between the stable oxygen isotopes (mainly δ18O) from biogenetic phosphates from rodent teeth with the δ18O from meteoric water; that at the same time can be potentially related with palaeotemperatures. This work explores the palaeoenvironment reconstructions based on the δ18O composition of phosphates from enamel of rodent teeth (mainly Murinae and Arvicolinae) to approach to the Marine Isotope Stage 3 (ca. 60-30 ka) in Northeastern Iberia. Fourteen new δ18O analyses from current samples are presented, c…