Rusingoryx is a genus of extinct alcelaphine bovid artiodactyl closely related to the wildebeest. It contains one species, R. atopocranion, that lived on the plains of Kenya during the Pleistocene.
Description[]
R. atopocranion had a trumpet-like nasal passage similar to the nasal crests of crested hadrosaurids. According to an international team of paleontologists from the United States and Australia. Pleistocene Rusingoryx atopocranion are the first known mammals with hollow nasal crests. Rusingoryx ontogeny and evolution are broadly similar to lambeosaurine hadrosaurs.