The locality of Çalta has yielded one of the richest collection of fossil canids belonging to the raccoon dog genus NyctereutesTemminck, 1838. This locality is situated in central Anatolia and its age is determined as early Pliocene, c. 4 Ma. Ginsburg (1998) studied these canid remains and identified them as N. donnezani, which was previously known from some early Pliocene localities in southern France and Spain. Some later studies questioned this attribution. The present study provides a new description of all available material, housed in collections in Paris, Lyon and Ankara, and a detailed comparison of the cranial and dental characters with other known species of Nyctereutes. This study is completed by a cladistic analysis of cranial and dental characters to document the phylogenetic relationships of the Çalta raccoon dog. This analysis was done on the locality-based data, using the main occurrences of each species. Both morphological and cladistic analyses favour attribution of the Çalta raccoon dog to N. donnezani, in agreement with Ginsburg (1998). In addition, this study reveals that possible sexual dimorphism in the size and proportions of some cranial elements, such as stronger sagittal and nuchal crests, a better defined temporal line, a thicker zygomatic process of the maxillary bone, a braincase that is elongated but less round and, in particular, stronger subangular lobe in male individuals.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 41 • No. 1