Tethytragus nov. gen. et Gentrytragus nov. gen. Deux nouveaux bovides (Artiodactyla, Mammalia) du Miocene moyen. Relations phylogenetiques des bovides ante-vallesiens. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen Biological Chemical Geological Physical and Medical Sciences, 97(3), September 26 1994: 249-282. 271 [Zoological Record Volume 131]