Dental morphology and wear pattern of bamboo rats, genus Rhizomys (Rodentia: Spalacidae)
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- 作者：Raquel L贸pez-Anto帽anzas
- 关键词：AMNH ; American Museum of Natural History ; New York ; USA ; BMNH ; Natural History Museum ; London ; United Kingdom ; C.G. ; Catalogue gé ; né ; ral du Laboratoire des Mammifè ; res et Oiseaux ; MNHN ; Paris ; France ; GSI ; Geological Survey of India ; Kolkata ; India ; IVPP ; Institute of Vertebrate Paleontology and Paleoanthropology ; Beijing ; China ; MNHN ; Musé ; um national d&rsquo ; Histoire naturelle ; Paris ; France ; Y-GSP ; Yale-Geological Survey of Pakistan ; Quetta ; Pakistan ; ZMB ; Zoologische
- 刊名：Zoologischer Anzeiger - A Journal of Comparative Zoology
- 出版年：November, 2013
- 年：2013
- 卷：253
- 期：2
- 页码：85-92
- 全文大小：2467 K
文摘
Rhizomys, one of the most derived genera within the tribe Rhizomyini (Rhizomyinae, Spalacidae, Rodentia), comprises three species: Rhizomys sinensis , R. pruinosus and R. sumatrensis (). 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 .