Aceratherium

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
Subordo: Cynodontia
Infraordo: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Laurasiatheria
Cladus: Euungulata
Ordo: Perissodactyla
Subordo: Ceratomorpha
Superfamilia: Rhinocerotoidea

Familia: Rhinocerotidae
Subfamilia: †Aceratheriinae
Genera: Aceratherium

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Aceratherium was a genus of rhinoceros of the tribe Aceratheriini endemic to Africa and Asia from the Oligocene to Pliocene, living from 33.9—3.4 mya existing for approximately 30.5 million years.[1]
Taxonomy
Skull
Restoration by Heinrich Harder

Aceratherium was named by Kaup (1832). It was assigned to Rhinocerotidae by Carroll (1988); and to Aceratherini by Kaya and Heissig (2001).[2]
References

1. ^ PaleoBiology Database: Aceratherium, basic info
2. ^ T. Kaya and K. Heissig. 2001. Late Miocene rhinocerotids (Mammalia) from Yulafli (Corlu-Thrace/Turkey). Geobios 34(4):457-467