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Moratines: primeros micromamíferos en el Mioceno medio del área de Madrid

1981; Spanish National Research Council; Volume: 37; Issue: 3 Linguagem: Inglês

1988-3250

Marı́a Teresa Alberdi, Emiliano Borja Jiménez, Jorge Morales, Carmen Sesé,

Bat Biology and Ecology Studies

Until the present work, only the macromammals from the Miocene fossil faunas in the Madrid area have been reported. These faunas generally have been placed into two biostratigraphical levels within the middle Miocene: the lower represented by La Hidroelectrica and the upper by the remainder of the sites, which are near in age to Sansan (Crusafont y Villalta, 1954; Crusafont y Golpe, 1971). Moratines, a new site in the city of Madrid, has yielded the rodents Heteroxerus rubricati, Armantomys aragonensis, Pseudodryomys robustus and Megacricetodon minor cf. collongensis and the lagomorph Lagopsis penai; this permits the recognition of a fauna with Triceromeryx in levels older than the MN 6 zone, probably referable to the MN 4b zone (Middle Orleanian). The results of the present work make clear the heterogeneity of the faunas from the Madrid area, but without a revision of the identifications of the included taxa, it is not possible at present to evaluate the faunal differences.