Quaternary murid rodents of Timor. Part 1, New material of Coryphomys buehleri Schaub, 1937, and description of a second species of the genus. (Bulletin of the American Museum of Natural History, no. 341)

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dc.contributor.author Aplin, Kenneth P.
dc.contributor.author Helgen, K. M. (Kristofer M.)
dc.date.accessioned 2010-07-27T15:06:35Z
dc.date.available 2010-07-27T15:06:35Z
dc.date.issued 2010
dc.identifier.uri http://hdl.handle.net/2246/6077
dc.description 80 p. : ill. (some col.), maps ; 26 cm. Issued July 21, 2010. en
dc.description.abstract Large collections of fragmentary animal bones excavated from archaeological contexts in East Timor between 1968 and 2002 provide new material referable to the recently extinct, gigantic murine genus Coryphomys. We document the upper and lower dentition and palatal anatomy of C. buehleri Schaub, 1937, and identify and name a second species of Coryphomys, based on differences in molar size and morphology and skeletal robusticity. Alternative interpretations of the observed morphological and metric variability (sexual dimorphism, resource-based polymorphism, sample heterochroneity) are each carefully assessed and rejected, and we conclude that the genus comprised two species of approximately similar body size. Preserved cranial elements of both species of Coryphomys feature a high degree of anatomical specialization, including an unusual elaboration of the maxillary sinus complex. Though the specialized anatomy of Coryphomys invites consideration of its phylogenetic relationships, this exercise is hindered by a demonstrable high level of homoplasy (i.e., multiple, independent evolutionary losses and gains) in many of the key craniodental features traditionally surveyed within Murinae, while other features are insufficiently well surveyed for broad-scale analysis. Nevertheless, our comparisons highlight two potentially related lineages among the geographically proximate Murinae - the Philippine Phloeomyini and the Australo-Papuan Hydromyini. The remains of Coryphomys are relatively scarce in all the archaeological samples, but distributional evidence suggests that both species of Coryphomys were found primarily in upland habitats. Late Pleistocene samples document their former presence at lower elevations, possibly reflecting cooler climatic conditions at that time. en
dc.format.extent 15034228 bytes
dc.format.extent 1104388 bytes
dc.format.mimetype application/pdf
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher American Museum of Natural History. en
dc.relation.ispartofseries Bulletin of the American Museum of Natural History, no. 341. en
dc.subject Coryphomys buehleri. en
dc.subject Coryphomys musseri. en
dc.subject Muridae. en
dc.subject Rodents. en
dc.subject Timor-Leste. en
dc.title Quaternary murid rodents of Timor. Part 1, New material of Coryphomys buehleri Schaub, 1937, and description of a second species of the genus. (Bulletin of the American Museum of Natural History, no. 341) en
dc.title.alternative New material of Coryphomys buehleri Schaub, 1937, and description of a second species of the genus. en

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  • Bulletin of the American Museum of Natural History
    The Bulletin, published continuously since 1881, consists of longer monographic volumes in the field of natural sciences relating to zoology, paleontology, and geology. Current numbers are published at irregular intervals. The Bulletin was originally a place to publish short papers, while longer works appeared in the Memoirs. However, in the 1920s, the Memoirs ceased and the Bulletin series began publishing longer papers. A new series, the Novitates , published short papers describing new forms.

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