RT Journal Article T1 Los micromamíferos del tránsito Pleistoceno inferior-medio de Atapuerca (Burgos,España). Implicaciones bioestratigráficas y evolutivas T1 Micromammals from the lower-middle Pleistocene bocendary from Atapuerca (Burgos, Spain). Biostratigraphycal and evolutive implications A1 Gil Bazán, E. AB The micromammals association of the TD5- TD6 levels is exclusive from the karstic complex of Atapuerca (Burgos, Spain). This association is characterized by the presence of arvicolids : Terricola gregaloides, Terricola huescarensis, Terricola subterraneus, Microtus brecciensis, Arvicola chalirei, Mimorriys savini, Pliomys episcopalis, together two new rodent species: Terricola seseae nov. sp. and Microtus iignani nov. sp.. This fauna seems to correspond to the transit Lower Pleistocene - Middle Pleistocene, with more than 780.000 years ago, near of Matuyama/ Brunhes boundary PB Sociedad Geológica de España YR 1997 FD 1997 LK http://hdl.handle.net/10272/10592 UL http://hdl.handle.net/10272/10592 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026