Dental morphology and wear pattern of bamboo rats,genus Rhizomys (Rodentia: Spalacidae) |
| |
| Affiliation: | 1. Department of Computer Architecture, Universitat Politècnica de Catalunya (UPC), Jordi Girona 1–3, Barcelona 08034, Spain;2. Barcelona Supercomputing Center (BSC-CNS), Jordi Girona 1–3, Barcelona 08034, Spain;3. Institut d’Investigació en Intel.ligència Artificial (IIIA-CSIC), Campus UAB, Cerdanyola 08193, Spain;1. Laboratorio de Paleoparasitología y Arqueología Contextual, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3250, 7600 Mar del Plata, Buenos Aires, Argentina;2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina;3. Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Universidad de La Serena, La Serena, Chile;4. Laboratorio de Paleoecología Humana, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina |
| |
| Abstract: | Rhizomys, one of the most derived genera within the tribe Rhizomyini (Rhizomyinae, Spalacidae, Rodentia), comprises three species: Rhizomys sinensis Gray, 1831, R. pruinosus Blyth, 1851 and R. sumatrensis (Raffles, 1821). A detailed description of the morphology and wear pattern of the cheek teeth of this taxon is provided based on the study of 41 skulls. The variability tracked is due primarily to wear, control of which facilitates comparison of different individuals, fossil or not, at different wear stages. For the first lower and upper molars, six stages of wear (0–5) are recognized. The second lower and upper molars show five stages of wear (0–4), whereas the third ones have four (0–3). The dental wear pattern in Rhizomys is comparable to that of the Pliocene Brachyrhizomys shansius Teilhard de Chardin, 1942. |
| |
| Keywords: | Mammalia Rhizomyinae Rhizomyini Systematics Dental wear pattern |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
