Research Articles

Nyctereutes terblanchei: The raccoon dog that never was

Sally C. Reynolds
South African Journal of Science | Vol 108, No 1/2 | a589 | DOI: https://doi.org/10.4102/sajs.v108i1/2.589 | © 2012 Sally C. Reynolds | This work is licensed under CC Attribution 4.0
Submitted: 15 January 2011 | Published: 13 January 2012

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Sally C. Reynolds, University of the Witwatersrand, South Africa


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Abstract

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.

Keywords

Plio-Pleistocene; Sterkfontein Valley; jackal; variation; carnivores

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References


Ward OG, Wuster-Hill DH. Mammalian species no. 358: Nyctereutes procyonoides. Am Soc Mammalogists. 1990;358:1–5.

Nyctereutes procyonoides (raccoon dog) IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1 [homepage on the Internet]. c2011 [cited 2011 Jul 14]. Available from: www.iucnredlist.org

Estes RD. The behaviour guide to African mammals, including hoofed mammals, carnivores, primates. Berkeley: University of California Press; 1991.

Bardeleben C, Moore RL, Wayne RK. A molecular phylogeny of the Canidae based on six nuclear loci. Mol Phylogenet Evol. 2005;37:815–831. http://dx.doi.org/10.1016/j.ympev.2005.07.019, PMid:16213754

Reynolds SC. Where the wild things were: Spatial and temporal distribution of carnivores in the Sterkfontein Valley in relation to the accumulation ofmammalian assemblages. J Taph. 2010;8(2–3):233–257.

Geraads D. Plio-Pleistocene Carnivora of northwestern Africa: A short review. Comptes Rendus Palevol. 2008;7(8):591–599. http://dx.doi.org/10.1016/j.crpv.2008.09.008

Geraads D, Alemseged Z, Bobe R, Reed D. Nyctereutes lockwoodi N. sp.: A new canid (Carnivora: Mammalia) from the Middle Pliocene of Dikika, Lower Awash, Ethiopia. J Vert Pal. 2010;30(3):981–987. http://dx.doi.org/10.1080/02724631003758326

Werdelin L, Dehghani R. Carnivora. In: Harrison T, editor. Paleontology and geology of Laetoli: Human evolution in context. Volume 2: Fossil hominins and the associated fauna. Vertebr Paleobiol Paleoanthropology. 2011;189–232. http://dx.doi.org/10.1007/978-90-481-9962-4_8

Monguillon A, Spassov N, Argant A, Kauhala K, Viranta S. Nyctereutes vulpinus comb. et stat. nov. (Mammalia, Carnivora, Canidae) from the late Pliocene of Saint-Vallier (Drôme, France). Geobios. 2004;37:S183–S188. http://dx.doi.org/10.1016/S0016-6995(04)80014-7

Ewer RF. The carnivores. Ithaca and London: Cornell University Press; 1973.

Ficcarelli G, Torre D, Turner A. First evidence for a species of raccoon dog, Nyctereutes Temminck, 1838, in South African Plio-Pleistocene deposits. Estratto dal bollettino della Societa Paleontologica Italiana. 1984;23(1):125–130.

Broom R. Some South-African Pliocene and Pleistocene mammals. Ann Transvaal Mus. 1948;21:1–28.

Turner A. New fossil carnivore remains from the Sterkfontein hominid site (Mammalia: Carnivora). Ann Transvaal Mus. 1987;34:319–347.

Turner A. Further remains of Carnivora (Mammalia) from the Sterkfontein hominid site. Palaeontol Afr. 1997;34:115–126.

Lacruz R, Turner A, Berger LR. New Dinofelis (Carnivora: Machairodontinae) remains from Sterkfontein Valley sites and a taxonomic revision of the genus in southern Africa. Ann Transvaal Mus. 2006;43:89–106.

O’Regan HJ. A revision of the Carnivora from Member 5, Sterkfontein, South Africa, based on a reassessment of published material and site stratigraphy. Ann Transvaal Mus. 2007;44:209–214.

O’Regan HJ, Reynolds SC. An ecological reassessment of the southern African carnivore guild: A case study from Member 4, Sterkfontein, South Africa. J Hum Evol. 2009;57:212–222. http://dx.doi.org/10.1016/j.jhevol.2009.04.002, PMid:19647856

Thackeray JF, Kirschvink JL, Raub TD. Palaeomagnetic analysis of calcified deposits from the Plio-Pleistocene hominid site of Kromdraai, South Africa. S Afr J Sci. 2002;98:537–540.

Pickering R, Kramers JD. Re-appraisal of the stratigraphy and determination of new U-Pb dates for the Sterkfontein hominin site, South Africa. J Hum Evol. 2010;59:70–86. http://dx.doi.org/10.1016/j.jhevol.2010.03.014, PMid:20605190

Herries AIR, Shaw J. Palaeomagnetic analysis of the Sterkfontein palaeocave deposits: Implications for the age of the hominin fossils and stone tool industries. J Hum Evol. 2011;60(5):523–539. http://dx.doi.org/10.1016/j.jhevol.2010.09.001, PMid:21392817

Kuman K, Clarke RJ. Stratigraphy, artefact industries and hominid associations for Sterkfontein Member 5. J Hum Evol. 2000;38:827–847. http://dx.doi.org/10.1006/jhev.1999.0392, PMid:10835264

Reynolds SC, Vogel JC, Clarke RJ, Kuman KA. Preliminary results of investigations at Lincoln Cave, Sterkfontein, South Africa. S Afr J Sci. 2003;99:286–288.

Vrba ES. Ecological and adaptive changes associated with early hominid evolution. In: Delson E, editor. Ancestors, the hard evidence. New York: Alan R. Liss, 1985; p. 63–71.

Brain CK. The hunters or the hunted? An introduction to African cave taphonomy. Chicago: University of Chicago; 1981.

Ewer RF. The fossil carnivores of the Transvaal Caves: Canidae. Proc Zool Soc London. 1956;126(1):97–120. http://dx.doi.org/10.1111/j.1096-3642.1956.tb00427.x

Reynolds SC. Mammalian body size changes and Plio-Pleistocene environmental shifts: Implications for understanding hominin evolution in eastern and southern Africa. J Hum Evol. 2007;53(5):528–548. http://dx.doi.org/10.1016/j.jhevol.2007.01.014, PMid:17915290

Van Valkenburgh B, Wayne RK. Shape divergence associated with size convergence in sympatric East African jackals. Ecology. 1994;5(6):1567–1581. http://dx.doi.org/10.2307/1939618

Girman DJ, Vilà C, Geffen E, et al. Patterns of population subdivision, gene flow and genetic variability in the African wild dog (Lycaon pictus). Mol Ecol. 2001;10:1703–1723. http://dx.doi.org/10.1046/j.0962-1083.2001.01302.x, PMid:11472538



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