Calippus placidus (extinct)
Variant names:
Merychippus placidus
Protohippus placidus
Latitudinal range: 28.3° to 35.7°
Merychippus placidus
Protohippus placidus
Found in 5 samples
United States: Ten Mile Waterhole Creek (Middle Miocene), Bridge Ranch (Middle Miocene), Buckner Ranch (Middle Miocene), Farish Ranch (Late Miocene), Exell (Middle Miocene)
See also Calippus, Calippus cerasinus, Calippus martini, Calippus regulus, Calippus sp.