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Lycaon (genus)

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Lycaon
Temporal range: 2–0 Ma
Early Pleistocene – present
Two dogs sharing a meal.
African wild dogs
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Subfamily: Caninae
Tribe: Canini
Genus: Lycaon
Brookes, 1827
Species

Lycaon is a genus of canid which includes the African wild dog (Lycaon pictus) and the extinct species Lycaon sekowei and Lycaon magnus.

Taxonomy

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This hypercarnivorous and highly cursorial genus is distinguished by accessory cusps on the premolars. It branched from the wolflike canids lineage during the Plio-Pleistocene. Since then, Lycaon has become lighter and tetradactyl, but has remained hypercarnivorous. Lycaon sekowei is known from the early Pleistocene epoch of South Africa and was less cursorial.[1]

Some researchers consider the extinct Canis subgenus Xenocyon as ancestral to both Lycaon and Cuon.[2][3]: p149 

Other researchers propose that the extinct Canis (Xenocyon) falconeri and Canis (Xenocyon) lycaonoides should be classified under genus Lycaon, to give the descent of three chronospecies: L. falconeri in the Late Pliocene of Eurasia → L. lycaonoides in the Early Pleistocene and the beginning of the Middle Pleistocene of Eurasia and Africa → L. pictus in the Middle–Late Pleistocene and today the extant African descendant.[4]

See also

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References

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  1. ^ Hartstone-Rose, A.; Werdelin, L.; De Ruiter, D. J.; Berger, L. R.; Churchill, S. E. (2010). "The Plio-Pleistocene Ancestor of Wild Dogs, Lycaon sekowei n. sp". Journal of Paleontology. 84 (2): 299–308. doi:10.1666/09-124.1. S2CID 85585759.
  2. ^ Cherin, Marco; Bertè, Davide F.; Rook, Lorenzo; Sardella, Raffaele (2013). "Re-Defining Canis etruscus (Canidae, Mammalia): A New Look into the Evolutionary History of Early Pleistocene Dogs Resulting from the Outstanding Fossil Record from Pantalla (Italy)". Journal of Mammalian Evolution. 21: 95–110. doi:10.1007/s10914-013-9227-4. S2CID 17083040.
  3. ^ Wang, Xiaoming; Tedford, Richard H.; Dogs: Their Fossil Relatives and Evolutionary History. New York: Columbia University Press, 2008.
  4. ^ Martínez-Navarro, B. & L. Rook (2003). "Gradual evolution in the African hunting dog lineage: systematic implications". Comptes Rendus Palevol. 2 (#8): 695–702. doi:10.1016/j.crpv.2003.06.002.