Mesohippus 3-Toed Horse Jaw Section #4


Fossil Horse Collection

Out of stock

SKU: Mesohippus 3-Toed Horse Jaw Section #4 Category: Tags: , , ,


  • Mesohippus 3-Toed Horse
  • Jaw Section
  • Oligocene Age
  • White River Formation
  • South Dakota
  • This specimen measures approx.  1 1/8″ wide and will come in the 3.25″ x 4.25″ Riker Mount with Label as Shown

Mesohippus is an extinct genus of early horse. It lived some 30 to 40 million years ago from the Middle Eocene to the Early Oligocene. Mesohippus had longer legs than its predecessor Eohippus and stood about 60 cm (6 hands) tall. It had also lost a toe and stood predominantly on its middle toe, although the other two were also used. The face of Mesohippus was longer and larger than earlier equids. It had a slight facial fossa, or depression, in the skull. The eyes were rounder, and were set wider apart and farther back than in Hyracotherium. Unlike earlier horses, its teeth were low crowned and contained a single gap behind the front teeth, where the bit now rests in the modern horse. In addition, it had another grinding tooth, making a total of six. Mesohippus was a browser that fed on tender twigs and fruit.