Ceratotherium

Ceratotherium (Greek: "horn" (keratos), "beast" (therion) ) is a genus of the family Rhinocerotidae, consisting of a single extant species, the white rhinoceros (Ceratotherium simum), and its extinct relative Ceratotherium mauritanicum, of which Ceratotherium efficax is considered a synonym. Another species known as Ceratotherium praecox is now considered a member of the related genus Diceros. The placement of Ceratotherium neumayri from the Late Miocene of Europe and Western Asia within the genus has been questioned, with other authors assigning it to the separate genus Miodiceros.  The species 'Ceratotherium’ advenientis is known from the Late Miocene of Italy (when it was still part of Africa).