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类动物之一是始祖马,这是一种小型有蹄类动物, 其化石最早是在英格兰发现的,并出于某种原因因其与岩蹄兔的相似性而得名。