Eohippus

Eohippus; Temporal range: Ypresian,
	Reconstructed skeleton, National Museum of Natural History, Washington, D.C., United States
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	Equidae
Genus:	†Eohippus; Marsh, 1876
Species:	†E. angustidens
Binomial name
	†Eohippus angustidens; (Cope, 1875)
Synonyms
	Eohippus validus ; Hyracotherium angustidens ; H. a. angustidens ; H. a. etsagicum ; H. vasacciense ; H. v. vasacciense ; H. cusptidatum ; H. seekinsi ; H. loevii ; Orohippus angustidens ; Orohippus cuspidatus ; Orohippus vasacciensis ; Lophiotherium vasacciense ;

Eohippus is an extinct genus of small equid ungulates.^[1] The only species is E. angustidens, which was long considered a species of Hyracotherium. Its remains have been identified in North America and date to the Early Eocene (Ypresian stage).^[2]

^ MacFadden, Bruce J. (18 March 2005). "Fossil Horses--Evidence for Evolution" (PDF). Science. 307 (5716): 1728–1730. doi:10.1126/science.1105458. PMID 15774746. S2CID 19876380. Retrieved 13 July 2024.
^ Froehlich, David J. (2002). "Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla)". Zoological Journal of the Linnean Society. 134 (2): 141–256. doi:10.1046/j.1096-3642.2002.00005.x.

[1] MacFadden, Bruce J. (18 March 2005). "Fossil Horses--Evidence for Evolution" (PDF). Science. 307 (5716): 1728–1730. doi:10.1126/science.1105458. PMID 15774746. S2CID 19876380. Retrieved 13 July 2024.

[Eohippus-2] Froehlich, David J. (2002). "Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla)". Zoological Journal of the Linnean Society. 134 (2): 141–256. doi:10.1046/j.1096-3642.2002.00005.x.

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