Invalid names: Aulacocephalodon milletti Broom 1928 [synonym], Chelyrhynchus lachrymalis Haughton 1917 [synonym], Dicynodon allani Broom 1940 [synonym], Dicynodon andrewsi Broom 1921 [synonym], Dicynodon brachyrhynchus Broom 1948 [synonym], Dicynodon breviceps Haughton 1915 [synonym], Dicynodon corstorphinei Broom and Haughton 1917 [synonym], Dicynodon curtus Broom 1921 [synonym], Dicynodon cyclops Haughton 1917 [synonym], Dicynodon graaffi Broom 1940 [synonym], Dicynodon greyii Owen 1860 [synonym], Dicynodon kolbei Broom 1912 [synonym], Dicynodon lutriceps Broom 1912 [synonym], Dicynodon maccabei Broom 1940 [synonym], Dicynodon marlothi Broili and Schröder 1936 [synonym], Dicynodon megalops Owen 1876 [synonym], Dicynodon moutonae Broom 1948 [synonym], Dicynodon nesemanni Broom 1940 [synonym], Dicynodon prognathus Owen 1860 [synonym], Dicynodon richardi Broom 1940 [synonym], Dicynodon robertsi Broom 1948 [synonym], Dicynodon schwarzi Broom 1919 [synonym], Dicynodon truncatus Broom 1899 [synonym], Dicynodon vanderbyli Broom 1928 [synonym], Dicynodon wellwoodensis Broom 1936 [synonym], Oudenodon bolorhinus Broom 1911 [synonym], Oudenodon brevirostris Owen 1876 [synonym], Oudenodon glaucops Broom 1948 [synonym], Oudenodon halli Watson 1914 [synonym], Oudenodon latirostris Broom 1932 [synonym], Oudenodon luangwanensis Boonstra 1938 [synonym], Oudenodon mustoi Haughton 1915 [synonym], Oudenodon planus Broom 1913 [synonym], Oudenodon platyceps Broom 1913 [synonym], Oudenodon platyfrons Broom 1932 [synonym], Oudenodon robustus Broom 1932 [synonym], Oudenodon wilmanae Broom 1928 [synonym]