Allacerops

Allacerops; Temporal range: Oligocene, 33.9–23.03 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	†Eggysodontidae
Genus:	†Allacerops; Wood, 1932
Type species
	Allacerops turgaica; (Borissiak, 1915)

Allacerops 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 deposits throughout Central and East Asia.

Allacerops was synonymized with Eggysodon by Heissig (1989), but is now considered a distinct genus.^[1]^[2]^[3]^[4] Unaware that Wood (1932) made turgaica the type species of Allacerops, Reshetov et al. (1993) erected Tenisia for "Epiaceratherium" turgaica. Tenisia, however, was already in use for a brachiopod, so Spassov (1994) erected Teniseggysodon as a replacement. In any case, Qiu et al. (1999) recognized Teniseggysodon a junior objective synonym of Allacerops as both were based on the same type species.^[5]^[6]^[7]

References

^ 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
^ Reshetov, V., Spassov, N., and Baishashov, B., 1993. Tenisia gen. nov.: Taxonomic revaluation of the Asian Oligocene Rhinocerotoid Eggysodon turgaicum (Borissiak, 1915) (Mammalia, Perissodactyla, Hyracodontidae). Geobios 26(3): 715–722.
^ Qiu Zhan-xiang; Wang Ban-yue, 1999. Allacerops (Rhinocerotoidea, Perissodactyla) its discovery in China and its systematic position. Vertebrata PalAsiatica 37 (1): 48-61, pl.1
^ Spassov, N., 1994. Teniseggysodon nom. nov. pro Tenisia Reshetov, Spassov, Baishashov, 1993 (Mammalia, Perissodactyla, Hyracodontidae). Geobios, 27(2):220.