Homologous characters of the primary and secondary horns of the ruminants mentioned below are found on the basis of studies in the skulls of fossil and modern deer and giralfes. An assumption is advanced that the alteration ...

Based on the studies of new materials and the revision of old Neogenic Bovidae of the Tragocerini tribe in the territory of Eastern Europe, different genera of these pecu¬liar ruminants are differentiated. Their adaptation ...