Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Laurasiatheria
Cladus: Scrotifera
Cladus: Ferungulata
Cladus: Euungulata
Ordo: Perissodactyla
Subordo: Ceratomorpha
Superfamilia: Rhinocerotoidea
Familia: †Eggysodontidae
Genera: †Allacerops – †Eggysodon – †Guangnanodon – †Ilianodon – †Proeggysodon
Name
Eggysodontidae Breuning, 1924
Synonymy
Eggysodontidae
Eggysodontinae Breuning, 1924: 9
References
Primary references
Breuning, S. 1924. Beiträge zur Stammesgeschichte der Rhinocerotidae. Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien 73: 5–46. ZOBODAT Reference page.
Eggysodontidae is a family of perissodactyls, closely related to rhinoceroses. Fossils have been found in Oligocene deposits in Europe, the Caucasus, Central Asia, China, and Mongolia.[1]
Taxonomy
The family Eggysodontidae has been at times considered a subfamily of Hyracodontidae, as Eggysodontinae, by several authors.[2][3][4][5] However, recent analyses have leaned towards recognizing eggysodonts as a distinct family more closely related to crown Rhinocerotoidea than to hyracodonts or paraceratheres.[6][7][8]
Biology
Eggysodonts were ground-dwelling browsers, being largely the size of dogs.
References
"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
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