Aegyrcitherium beonensis n. g. n. sp., a new elasmotherine rhinocerotid (Mammalia) from the Lower Miocene (MN 4b) of Montreal-du-Gers (Gers, France). Phylogenetic relationships within Elasmotheriini. Neues Jahrbuch fuer Geologie und Palaeontologie Abhandlungen, 204(3), Juni 1997: 399-414. 400 [Zoological Record Volume 134]