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Title: Contributions à la Paléontologie du Miocène moyen continental du Bassin du Tage. III - Mammifères - Póvoa de Santarém, Pêro Filho et Chões (Secorio). Conclusions générales
Author: Antunes, M. Telles
Mein, P.
Keywords: Mammalia
middle Miocene
Issue Date: 15-Jul-2008
Abstract: This study on middle Miocene mammalian faunas from Tagus'basin deals particularly with some small mammals hitherto undescribed from Portugal, including a new Glirid (Paraglirulus scalabicensis nov. sp.); it allows an accurate datation by biostratigraphical standards, Megacricetodon crusafonti, Fahlbuschia darocensis, Cricetodon jotae being characteristic of mammalian MN6 unit, thus their age is nearly that of Sansan and Manchones (however the presence of Peridyromys hamadryas and Lagopsis verus do suggest, amidst this biozone, a somewhat later age than Sansan's); it contributes with indirect correlation data with marine formations, as underlying oyster-bearing beds most probably are in correspondance to the apogee of the same transgression that deposed near Lisbon ”schlier" facies from VI-a division (Serravalian, Blow's zones 10-13, Globorotalia meyeri zone); the diversity of mammalian assemblages is surely related to an environement with varied biotopes, whose characterisation becomes easier if account is taken of the preceding papers on mollusks (G. Truc) and Cyprinid fishes (J. Gaudant), and also according to some unpublished paleobotanical data (J. Pais). A table with a synthesis of all paleontological data so far known is presented.
Appears in Collections:FCT: DCT - Ciências da Terra

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