The 25 centimetres (9.8 in) long creature closely resembled modern rabbits. However, it had shorter hind limbs than living rabbits, suggesting that it was probably unable to hop, and would have instead moved in a creeping fashion similar to a ground squirrel. They were common herbivorous inhabitants of the savanna, plains and woodlands of North America 30 million years ago.
The fossil remains of rabbits are scanty and those specimens that have been found are often too fragmentary to determine satisfactory the relationship with living forms. The bones of rabbits and hares are lightweight and fragile in structure, and so they are not easily preserved as fossils. Most of the species are inhabitants of uplands where conditions are not ideal for preservation. In a few deposits, rabbit remains seem numerous but many fossil species are known only from a few teeth and bones.