Entelodon

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Entelodon (meaning 'complete teeth', from Ancient Greek Script error: No such module "Lang". entelēs 'complete' and Script error: No such module "Lang". odōn 'tooth', referring to its "complete" eutherian dentition[1]), formerly called Elotherium, is an extinct genus of entelodont artiodactyl endemic to Eurasia. Fossils of species are found in Paleogene strata ranging in age from the Houldjinian (37.2–33.9 mya) until the Rupelian epoch of the early Oligocene (33.9–28.4 mya).[2]

Taxonomy

It is one of four entelodont genera native to Eurasia, the other three being the primitive Eoentelodon of late Eocene China, Proentelodon of middle Eocene Mongolia and the gigantic Paraentelodon of mid-to-late Oligocene Central Asia.

Description

File:Size comparison between Entelodon deguilhemi and a human male.png
Size comparison between E. deguilhemi and a human

Entelodon was a fairly typical entelodont, with a large, bulky body, slender legs, and a long snout.[3][1][4][5]

Like other entelodonts, Entelodon had complete eutherian dentition (3 incisors, 1 canine, 3 premolars, and 3 molars per quadrant). It had only two toes on each foot, and its legs were built for fast running.[6] Its long, wide head was supported by a robust, short neck,[6] and its cheekbones were greatly enlarged and protruded noticeably from the sides of the head.[7] Though it was more closely related to hippos and whales than pigs, its skull was generally pig-like.[6][7] It is presumed to have been an omnivore.

European species of Entelodon were around Template:Convert tall at the shoulders, with a Template:Convert skull.[6] Entelodon major, known from the Kutanbulak Formation in Kazakhstan was around Template:Convert tall at the shoulders, with an Template:Convert skull, making it one of the largest entelodonts.

Paleoecology

File:Entelodon.jpg
Life restoration by Charles R. Knight, 1886

Based on its dental microwear, E. magnus had an omnivorous diet comparable to that of the modern wild boar.[8]

Entelodon remains are primarily known from Europe,[9][10][11] although fossils have also been found in Kazakhstan, Mongolia, China, and even as far east as Japan.[12][13][14]

Entelodon magnus populated a broad swath of Europe, with remains found in Spain, Germany, France, Romania, and the Caucasus. Extensive remains of Entelodon deguilhemi were uncovered in Vayres-sur-Essonne, France.[6][15] The Chinese Entelodon dirus is known from a single tooth discovered in Nei Mongol.[16]

See also

References

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  1. a b Script error: No such module "citation/CS1".
  2. PaleoBiology Database: Entelodon, basic info
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  6. a b c d e Agustí, J and Antón, M (2002). Mammoths, Sabertooths, and Hominids: 65 Million Years of Mammalian Evolution in Europe. Retrieved from Google Books
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  15. Paleobiology Database:Entelodon deguilhemi
  16. Paleobiology Database:Entelodon dirus