First record of an upper deciduous molar in Desmanella (Uropsilinae,Talpidae, Mammalia) |
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| Authors: | Johannes Klietmann Brian D Metscher Lars W van den Hoek Ostende Doris Nagel Michael Rummel |
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| Institution: | 1. University Vienna, Department of Palaeontology, Althanstraße 14, 1090 Vienna, Austria;2. University Vienna, Department of Theoretical Biology, Althanstraße 14, 1090 Vienna, Austria;3. Naturalis, PO Box 9517, 2300 RA Leiden, The Netherlands;4. Naturmuseum, Augusta Arcaden, Ludwigstraße 2, 86152 Augsburg, Germany |
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| Abstract: | The dP4 of Desmanella engesseri Ziegler, 1985 from a maxillary which includes the P2 and P3 in crypt, the P4 in eruption and fully erupted dP4 and M1, is described from Petersbuch 28 (Germany; Lower Miocene, MN3/4). The maxillary was studied using X-ray microtomography to make detailed images of the internal and external features of the sample. This is the first record of a dP4 from Desmanella Engesser, 1972. Its shape is unique for fossil talpids, possessing the apomorphic feature of replacing the protocone with a large lingual cingulum. The functional use of deciduous teeth and the process that led to the complete loss of milk teeth in extant talpids are discussed. |
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| Keywords: | Desmanella Miocene Talpidae Deciduous teeth |
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