A latest Biharian small vertebrate fauna from the lacustrine succession of San Lorenzo (Sant’Arcangelo Basin, Basilicata, Italy)

摘要: Abstract The Sant’Arcangelo Basin is located in the southern part of Apennine chain (Basilicata). It filled by a siliciclastic sequence 3500 m thick, dated to Late Pliocene–Middle Pleistocene time interval. In this basin an Early Middle fluvio-lacustrine sequence, known as San Lorenzo Cycle, has been recognised. upper Rifreddo, fairly diversified small vertebrate assemblage recovered. occurrence Mimomys savini allows fauna be considered Biharian. presence some faunal elements such Microtus ( Terricola ) arvalidens, Iberomys ex gr . huescarensis-brecciensis, and Macroneomys cf. brachygnathus restricts age Rifreddo latest Mammal Age. several European localities, sediments containing late Biharian faunas are correlated with lower Brunhes magnetochrone (e.g. normally magnetised sections at West Runton United Kingdom, Voigtstedt Germany Přezletice Czech Republic) or just below boundary negatively Atapuerca section — levels TD4-6 Spain). Taking into account composition positive magnetisation outcropping locality, chronological referral mammal can restricted early therefore middle Pleistocene.