Confirmation of the occurrence of Cynognathus Zone (Kannemeyeria-Diademodon Assemblage-zone) deposits (uppermost Beaufort Group) in the northeastern Orange Free State, South AfricaWELMAN, J; GROENEWALD, G. H; KITCHING, J. W et al.South African journal of geology. 1991, Vol 94, Num 2-3, pp 245-248, issn 1012-0750Article

EARLY TRIASSIC TETRAPODS AND GONDWANALAND.COLBERT EH.1975; MEM. MUS. NATION. HIST. NAT., A; FR.; (XVIIE CONGR. INT. ZOOL. BIOGEOGR. LIAISONS INTERCONT. AU COURS MEZOZOIQUE; MONACO; 1972),1975, VOL. 88, P. 202 A 215Miscellaneous