👉 Perissodactyl, also known as "petrified" or "prehistoric" animals, is a group of extinct mammals that lived during the Late Cretaceous period (about 68 to 72 million years ago). Perisodactyls are characterized by having no nails on their toes and instead have digits on the front of their feet. They were herbivores with a diet primarily consisting of plants, fungi, and some animals. Perissodact