Eggysodon
Eggysodon Temporal range: Oligocene,
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A restoration of Eggysodon turgaica | |
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Genus: | Eggysodon Roman, 1910
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Allacerops[1] |
Eggysodon is an extinct genus of odd-toed ungulate belong to the rhinoceros-like family Eggysodontidae. It was a small, ground-dwelling browser, and fossils have been found in Oligocene rocks of Germany.[2] Eggysodon may have been related to Preaceratherium, and both had tusklike canines and smaller, and fewer, incisors.
The species "Epiaceratherium" turgaicum Borissiak, 1915, described from Oligocene deposits in Kazakhstan, was once referred to Eggysodon, but was later assigned to its own genus, Tenisia, in 1993. It differs from Eggysodon in having a greater number of incisors and premolars.[3] Allacerops, a close relative of Eggysodon, was synonymized with Eggysodon by Heissig (1989), but is now considered a distinct genus.[4][5][6][7]
References
- ^ Cerdeño, Esperanza (14 August 1995). "Cladistic Analysis of the Family Rhinocerotidae (Perissodactyla)" (PDF). New York, NY: American Museum of Natural History: 4. Retrieved 28 October 2013.
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(help)[permanent dead link] - ^ "Eggysodon". Paleobiology Database. Retrieved 28 October 2013.
- ^ Reshetov, Valeri (1993). "Tenisia gen. nov.: Taxonomic revaluation of the Asian Oligocene Rhinocerotoid Eggysodon turgaicum (Borissiak, 1915) (Mammalia, Perissodactyla, Hyracodontidae)". ScienceDirect. Geobios: 715–722.
- ^ Heissig, K., 1989. Rhinocerotidae. In D. R. Prothero and R. M. Schoch, (eds.), The evolution of perissodactyls, pp.399-417. New York: Oxford Univ. Press.
- ^ B.-Y. Wang and Z.-X. Qiu. 2004. Discovery of early Oligocene mammalian fossils from Danghe area, Gansu, China. Vertebrata PalAsiatica 42(2):130-143
- ^ B. Bai and Y.-Q. Wang. 2012. Proeggysodon gen. nov., a primitive Eocene eggysodontine (Mammalia, Perissodactyla) from Erden Obo, Siziwangqi, Nei Mongol, China. Vertebrata PalAsiatica 50(3):204-218
- ^ H. Wang, B. Bai, J. Meng and Y. Wang. 2016. Earliest known unequivocal rhinocerotoid sheds new light on the origin of Giant Rhinos and phylogeny of early rhinocerotoids. Scientific Reports 6:39607:1-9