Invalid names: Brachycrus buwaldi barstowensis Schultz and Falkenbach 1940 [synonym], Brachycrus laticeps mooki Schultz and Falkenbach 1968 [invalid subgroup], Brachycrus sweetwaterensis Schultz and Falkenbach 1940 [synonym], Brachycrus vaughani Schultz and Falkenbach 1940 [synonym], Brachycrus vaughani rioosoensis Schultz and Falkenbach 1968 [synonym], Brachycrus wilsoni Schultz and Falkenbach 1940 [synonym], Brachycrus wilsoni longensis Schultz and Falkenbach 1940 [synonym], Desmatochoerus newchicagoensis Schultz and Falkenbach 1954 [synonym], Merycochoerus altiramus Douglass 1901 [synonym], Merycochoerus buwaldi Merriam 1919 [synonym], Merycochoerus elrodi Douglass 1901 [synonym], Merycochoerus madisonius Douglass 1901 [synonym]