One of the first perissodactyls we know of was Hyracotherium, a small ungulate whose fossils were first discovered in England and named, for some reason, for its supposed resemblance to the rock hyrax.
我们所知道的最早的奇蹄目动物之一是原蹄兽,这是一种小型有蹄类动物, 其化石最早在英国被发现,并因某种原因被命名为“类似岩鼠” 的动物。