RT Journal Article
T1 Dental microwear analysis in Gliridae (Rodentia): methodologicalissues and paleodiet inferences based on Armantomys from theMadrid Basin (Spain)
A1 Oliver Pérez, Adriana
A1 Hernández Vallarín, Verónica
A1 López Guerrero, Paloma
A1 García Paredes, Israel
A1 Álvarez Sierra, María Ángeles
A1 Gómez Cano, Ana Rosa
A1 García Yelo, Ana Blanca
A1 Alcalde Rincón, Gema María
A1 Peláez-Campomanes de Labra, Pablo
AB 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.
PB Universidad Complutense de Madrid
SN 1698-6180
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/33625
UL https://hdl.handle.net/20.500.14352/33625
LA eng
DS Docta Complutense
RD 4 may 2024