Nyctereutes terblanchei: The raccoon dog that never was

South African Journal of Science

 
 
Field Value
 
Title Nyctereutes terblanchei: The raccoon dog that never was
 
Creator Reynolds, Sally C.
 
Subject Palaeontology; Plio-Pleistocene; Sterkfontein Valley; jackal; variation; carnivores
Description Fossils of the raccoon dog (genus Nyctereutes) are particularly rare in the African Plio-Pleistocene record, whilst the sole living representative, Nyctereutes procyonoides, is found in eastern Asia and parts of Europe. In southern Africa, only one fossil species of raccoon dog has been identified – Nyctereutes terblanchei. N. terblanchei is recognised from a handful of Plio-Pleistocene sites in South Africa: Kromdraai, Kromdraai–Coopers and Sterkfontein in Gauteng, as well as Elandsfontein in the Western Cape Province. The validity of this species identification was questioned on the basis of the rarity of southern African fossils assigned to Nyctereutes, that is, fewer than 10 specimens have been identified as Nyctereutes. This study examined this fossil sample of the raccoon dog from the Gauteng sites and compared dental and cranial metrics of the fossil with samples of modern canids and published data. Morphological traits used to distinguish Nyctereutes, such as the pronounced subangular lobe on the mandible and the relatively large size of the lower molars, were observed to be variable in all samples. Analysis showed that the size of the dentition of the southern African fossil samples was larger than that of living raccoon dogs, but fell well within the range of that of African jackals. These results suggest that fossil Nyctereutes cannot be distinguished from other canid species based on metric data alone, and may only be diagnosable using combinations of non-metric traits of the dentition and skull. However, based on the degree of morphological variability of the traits used to diagnose Nyctereutes, as well as the rarity of this genus in the African fossil record, these fossils are more likely to belong to a species of jackal or fox.
 
Publisher AOSIS
 
Contributor National Research Foundation (NRF)
Date 2012-01-13
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — linear measurement; statistical comparison
Format application/pdf text/html application/epub+zip text/xml
Identifier 10.4102/sajs.v108i1/2.589
 
Source South African Journal of Science; Vol 108, No 1/2 (2012); 10 pages 1996-7489 0038-2353
 
Language eng
 
Relation
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Coverage Africa Pliocene; Pleistocene termporal variation; skeleton
Rights Copyright (c) 2012 Sally C. Reynolds https://creativecommons.org/licenses/by/4.0
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