Phylum Chordata Order Perissodactyla Rank Genus | ||
 | ||
Similar Haplohippus, Sinohippus, Kalobatippus, Eurygnathohippus, Pseudhipparion | ||
Protorohippus is an extinct equid that lived in the Eocene of North America.
References
Protorohippus Wikipedia(Text) CC BY-SA