Invalid names: Procolophon baini Broom 1905 [synonym], Procolophon brasiliensis Cisneros and Schultz 2002 [synonym], Procolophon cuneiceps Seeley 1878 [synonym], Procolophon griersoni Seeley 1878 [synonym], Procolophon laticeps Seeley 1878 [synonym], Procolophon minor Owen 1876 [synonym], Procolophon platyrhinus Seeley 1905 [synonym], Procolophon pricei Lavina 1983 [synonym], Procolophon sphenorhinus Seeley 1905 [synonym]