What is "sivatherium"

Sivatherium \Siv`a*the"ri*um\, n. [NL., from E. Siva + Gr. ???? a beast, an animal.] (Paleon.) A genus of very large extinct ruminants found in the Tertiary formation of India. The snout was prolonged in the form of a proboscis. The male had four horns, the posterior pair being large and branched. It was allied to the antelopes, but very much larger than any exsisting species.

'Sivatherium ' (" Shiva's beast") is an extinct genus of giraffid that ranged throughout Africa to the Indian Subcontinent. The African species, S. maurusium, was once placed within the genus "Libytherium." It may have become extinct as recently as 8,000 years ago, as depictions that greatly resemble it are known from ancient rock paintings in the Sahara desert.