The Eumyarion (Mammalia,Rodentia, Muridae) assemblage from Sandelzhausen (Miocene,Southern Germany): a test on homogeneity

A large sample of Eumyarion cheek teeth (N = 569) from the Early/Middle Miocene boundary locality Sandelzhausen (MN5, Southern Germany), type locality E. bifidus Fahlbusch, 1964, is studied. It is concluded that this collection contains two species: E. bifidus and E. weinfurteri Schaub and Zapfe, 1953. The similarity in size and morphology of the cheek teeth of these two species is so great that only the M1 and M2 can be recognised with certainty. Eumyarion bifidus seems to be a descendant of E. orhani de Bruijn et al., 2006 from the Early Miocene (MN3) of Southwestern Anatolia and is therefore considered to be an immigrant into Central Europe.