Find the word definition

Wikipedia
Notostylops

Notostylops ("South Pillar Face") is a genus of extinct South American ungulate from the Eocene.

In life, Notostylops would have resembled a dog-sized rabbit and is suspected to have browsed on low-growing plants. Notostylops was a generalised animal, likely adapted to a fairly wide range of ecological niches. Its tall skull housed rodent-like incisor teeth. Notostylops was about long.