The eyes are small. The limbs are short, equal in length or nearly so, and extremely strong. There are five digits on all the limbs, and all have claws except the first toe, which is vestigial. Digits 2 and 3 of the hind foot are partly united by skin. The marsupium opens posteriorly and encloses a single pair of mammae.
Wombats have traces of cheek pouches.
They also have a group of glands of unusual structure inside the stomach that may be associated with digestion of a special type of plant food. The skull is massive and flattened. The dentition is remarkably similar to that of rodents. All the teeth of wombats are rootless and ever-growing, which compensates for wear. The two rootless incisors in each jaw are large and strong, have enamel on their front and lateral surfaces only, and are separated by a wide space from the cheek teeth.