Savage Earth: Cold Moon
Rhinotitans are a species of mammal known scientifically as the Brontotheriidae, also called Titanotheriidae. Superficially they look rather like rhinos, although they are not true rhinos and are probably most closely related to horses. Over time the male Rhinotitans have evolved a pair of bizarre hornlike appendages above their noses. However, unlike rhinos, the horns of brontotheres are composed of bone, the frontal bone and nasal bone, and were placed side-to-side rather than front-to-back.
Reaching up to 2.5 m in height Rhinotitans retain four toes on their front feet and three toes on their hind feet. Their teeth are adapted to shearing (cutting) relatively nonabrasive vegetation. They travel in large herds and can cause a great deal of damage to vegitation in the breeding season. The sexually dimorphic horns are an outward sign of just how highly gregarious (social) these beast are, with males performing spectacular head clashing behavior in competition for mates.