Rusingoryx atopocranion. Illustration and photo-reconstruction of the extinct antelope Rusingoryx. Rusingoryx is a poorly known extinct alcelaphine bovid, that lived on the plains of Kenya (Rusinga Island) during the Pleistocene. It contains only one species, R. atopocranio. Rusingoryx is known for its strange pointed nose with a large nasal dome. It's height was 120-150 cm and it weighed 130-250 kg. The first specimens were described in 1983, having been taken from a site called Bovid Hill on Rusinga Island in Lake Victoria. Butchered bones found in 2011 with stone tools suggested that they had been killed by humans.