Hemiodus Müller [J.] 1842:206 Masc. Hemiodus crenidens Müller 1842. Type by monotypy. Also in Müller 1843:316 [ref. 3063]. •Valid as Hemiodus Müller 1842 -- (Roberts 1974:432 [ref. 6872], Géry 1977:198 [ref. 1597], Vari 1983:5 [ref. 5419], Géry et al. 1987:403 [ref. 6001], Langeani 1998:157 [ref. 23841], Langeani 1999:718 [ref. 23914], Britski et al. 1999:71 [ref. 24147], Langeani in Reis et al. 2003:97 [ref. 27061], Oliveira et al. 2011:11 [ref. 31685], Beltrão & Zuanon 2012:255 [ref. 32032], Langeani & Moreira 2013:1259 [ref. 32535], Sarmiento et al. 2014:186 [ref. 35004], Nogueira et al. 2019:798 [ref. 36655], Nogueira et al. 2020:[5] [ref. 38050], Silva et al. 2020:172 [ref. 37389]). Current status: Valid as Hemiodus Müller 1842. Hemiodontidae.