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
Magnordo: Epitheria
Superordo: Afrotheria
Cladus: Paenungulata
Cladus: Tethytheria
Ordo: †Embrithopoda
Familia: †Arsinoitheriidae
Genera (†2): †Arsinoitherium – †Namatherium
Name
Arsinoitheriidae Andrews, 1904: 160
References
Primary references
Andrews, C.W. 1904. Further Notes on the Mammals of the Eocene of Egypt. Part II. Geological Magazine, Decade V., 1(4)(478): 157–162. DOI: 10.1017/S0016756800119491 Paywall BHL Reference page.
Vernacular names
English: Arsinoitheres
日本語: アルシノイテリウム科
中文: 埃及重腳獸科
Arsinoitheriidae is a family of mammals belonging to the extinct order Embrithopoda.[1] Remains have been found in the Middle East, Africa, Asia and Romania. When alive, they would have borne a strong but superficial resemblance to modern rhinoceroses; however, they were not closely related to them (or any other perissodactyl), instead being more closely related to hyraxes, elephants, sirenians, and possibly desmostylians (as part of the superorder Afrotheria).
Fossil record
Reconstruction of an undetermined Arsinoitherium species
Arsinoitherium zitteli skull
The last genus, Arsinoitherium, was first recovered from the Latest Eocene of the Fayum; it disappears from the fossil record altogether before the end of the Early Oligocene.
Etymology
The name honors the wife of Ptolemy II, Queen Arsinoe II of Egypt, as the first fossils of Arsinoitherium were found near the ruins of her palace.
References
Sanders, William J.; Nemec, Wojciech; Aldinucci, Mauro; Janbu, Nils E.; Ghinassi, Massimiliano (2014-07-29). "Latest evidence of Palaeoamasia (Mammalia, Embrithopoda) in Turkish Anatolia". Journal of Vertebrate Paleontology. 34 (5): 1155–1164. doi:10.1080/02724634.2014.850430. ISSN 0272-4634.
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