Eggysodontidae
| Eggysodonts Temporal range: Oligocene, | |
|---|---|
 | |
| Life restoration of Eggysodon | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Placentalia |
| Order: | Perissodactyla |
| Superfamily: | Rhinocerotoidea |
| Family: | †Eggysodontidae Breuning, 1923 |
| Genera | |
Eggysodontidae or Eggysodontinae is an extinct family or subfamily of rhinocerotoids. Fossils have been found in Oligocene deposits in Europe, the Caucasus, Central Asia, China, and Mongolia.[1]
Taxonomy
[edit]Eggysodonts are traditionally considered a subfamily of the rhinocerotoid famly Hyracodontidae, as Eggysodontinae.[2][3][4][5] Rhinocerotoid phylogeny is highly variable between analyses. Some recent analyses recover eggysodonts as outside of Hyracodontidae, which has led to some researchers recognizing them as a distinct family, Eggysodontidae.[6][7][8] They have been recovered in a variety of different positions in the rhinocerotoid family tree.[9][10] Some analyses still recover eggysodonts within a monophyletic Hyracodontidae, in which case they are still treated as a subfamily.[11]
Biology
[edit]Eggysodonts were small, ground-dwelling browsers.
References
[edit]- ↑ "Fossilworks: Eggysodontidae". fossilworks.org.
- ↑ Radinsky, L. B., 1967. The families of the Rhinocerotoidea (Mammalia, Perissodactyla). J Mammal 47, 631–639.
- ↑ Uhlig U 1999. Die Rhinocerotoidea (Mammalia) aus der unteroligozänen Spaltenfüllung Möhren 13 bei Treuchtlingen in Bayern. Abhandlungen der Bayerischen Akademie der Wissenschafen, Mathematisch-Naturwissenschaftliche Klasse, Neue Folge, Munich 170: 1–254.
- ↑ 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
- ↑ 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.
- ↑ Haibing Wang; Bin Bai; Jin Meng; Yuanqing Wang (2016). "Earliest known unequivocal rhinocerotoid sheds new light on the origin of Giant Rhinos and phylogeny of early rhinocerotoids". Scientific Reports. 6: Article number 39607. doi:10.1038/srep39607.
- ↑ Z. Qiu and B. Wang. 2007. Paracerathere Fossils of China. Palaeontologia Sinica, New Series C 193(29):1-396
- ↑ 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
- ↑ Bai, B.; Meng, J.; Zhang, C.; Gong, Y.-X.; Wang, Y.-Q. (2020). "The origin of Rhinocerotoidea and phylogeny of Ceratomorpha (Mammalia, Perissodactyla)". Communications Biology. 3 (1): 509. doi:10.1038/s42003-020-01205-8. PMC 7490376. PMID 32929169.
- ↑ Veine-Tonizzo, Lea; Tissier, Jérémy; Bukhsianidze, Maia; Vasilyan, Davit; Becker, Damien (2023). "Cranial morphology and phylogenetic relationships of Amynodontidae Scott and Osborn, 1883 (Perissodactyla, Rhinocerotoidea)". Comptes Rendus. Palevol. 22 (8): 109–142. doi:10.5852/cr-palevol2023v22a8.
- ↑ Lu, Xiaokang; Deng, Tao; Sun, Boyang; Sun, Danhui; Li, Shijie (2026). "A new rhinocerotoid (Mammalia, Perissodactyla) from the early Oligocene of Ningdong, China, and its phylogenetic implications". Journal of Mammalian Evolution. 32 (4): 47. doi:10.1007/s10914-025-09791-2. ISSN 1573-7055.
