What is "palaeotheriidae"

Palaeotheriidae is an extinct family of herbivorous perissodactyl mammals related to tapirs and rhinoceros, and probably ancestral to horses. They ranged across Europe and Asia during the Eocene through Oligocene 55—28 Ma, existing for approximately .

Living in dense forests, they ate soft leaves, shoots, berries, and leaf matter picked up from the forest floor.