Distinguishing the diets of coexisting fossil theridomyid and glirid rodents using carbon isotopes

Carbon isotope analyses were conducted on the teeth of four species of rodents and associated plant fossils from the Late Eocene–Early Oligocene Solent Group of the Hampshire Basin, UK. Results indicate that there is no detectable difference in the overall mean null δ null 13 C values between permanent cheek teeth of the two species of theridomyid, null Thalerimys fordi null and null Isoptychus null sp. This accords with their very similar teeth...