Protohippus
| Protohippus Temporal range: late Miocene | |
|---|---|
 | |
| Protohippus simus skeleton | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Perissodactyla |
| Family: | Equidae |
| Subfamily: | Equinae |
| Tribe: | Equini |
| Genus: | Protohippus |
Protohippus is an extinct three-toed genus of horse.[1] It was roughly the size of a modern donkey. Fossil evidence suggests that it lived during the Late Miocene and Early Pliocene, from about 14 Ma to 6 Ma.[2]
Analysis of Protohippus' skull and teeth suggests that it is most closely related to the genus Calippus.[3]
Species include:
- P. vetus
- P. perditus
- P. supremus (also P. simus)
- P. gidleyi
References
- ↑ MacFadden, Bruce J.; Dobie, James L. (1998). "Late Miocene Three-Toed Horse Protohippus (Mammalia, Equidae) from Southern Alabama". Journal of Paleontology. 72 (1): 149–152. JSTOR 1306685.
- ↑ http://ufdc.ufl.edu/UF00099410/
- ↑ http://ufdc.ufl.edu/UF00099410/
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