%0 Journal Article
%A Oliver Pérez, Adriana
%A Hernández Vallarín, Verónica
%A López Guerrero, Paloma
%A García Paredes, Israel
%A Álvarez Sierra, María Ángeles
%A Gómez Cano, Ana Rosa
%A García Yelo, Ana Blanca
%A Alcalde Rincón, Gema María
%A Peláez-Campomanes de Labra, Pablo
%T Dental microwear analysis in Gliridae (Rodentia): methodologicalissues and paleodiet inferences based on Armantomys from theMadrid Basin (Spain)
%D 2014
%@ 1698-6180
%U https://hdl.handle.net/20.500.14352/33625
%X In the present study we analyze the microwear of the species included in the lineage Armantomys aragonensis-A. tricristatus of twosamples from two middle Miocene localities from the Madrid Basin (El Cañaveral and Casa Montero). The methodological part of the studycompares light stereomicroscope photographs from resin casts and Environmental Scanning Electron Microscope (ESEM) photographsfrom original material. Furthermore two regions of the tooth crown (the most lingual part of the anteroloph, and the most lingual part of theprotoloph) and two homologous regions of first and second upper molars have been analyzed. The paleoecological part includes the resultsof the microwear analyses of the two species included in the lineage A. aragonensis-A. tricristatus. The replacement of A. aragonensis withA. tricristatus in the Madrid Basin occurred during the Middle Miocene Climate Transition (MMCT) and is marked by a change in dentalmorphology. Therefore, in order to infer changes in diet associated to a shift in the environment, we checked for correlations on microwearfeatures between the two different morphologies of the species.The two methodologies tested, ESEM on original teeth and light stereomicroscopy on resin casts, showed similar results on microwearanalysis in the glirid Armantomys. Besides, both regions of the tooth crown and dental elements showed the same microwear patterns. Thesubstitution of the species included in the lineage Armantomys aragonensis-A. tricristatus might not imply a change in diet.
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