Gymnogeophagus Miranda Ribeiro [A. de] 1918:790 Masc. Gymnogeophagus cyanopterus Miranda Ribeiro 1918. Type by monotypy. •Valid as Gymnogeophagus Miranda Ribeiro 1918 -- (Gosse 1976:109 [ref. 7029], Kullander 1980:23 [ref. 5526], Reis & Malabarba 1988 [ref. 6638], Malabarba 1989:167 [ref. 14217], Reis et al. 1992 [ref. 20011], Kullander 1998:494 [ref. 23855], Wimburger et al. 1998:509 [ref. 23857], Britski et al. 1999:146 [ref. 24147], Casciotta et al. 2000:53 [ref. 24908], Kullander in Reis et al. 2003:634 [ref. 27061], Staeck 2006:99 [ref. 29421], González-Bergonzoni et al. 2009:19 [ref. 30455] with author as Ribeiro, Malabarba et al. 2015:637 [ref. 34105], Loureiro et al. 2016:[1] [ref. 34384], Bertaco et al. 2016:426 [ref. 34561], García et al. 2017:1 [ref. 35261], Casciotta et al. 2017:1 [ref. 35497], Říčan et al. 2017:1 [ref. 35634], Casciotta et al. 2017:5 [ref. 35727], Turcati et al. 2018:1 [ref. 36363], Alonso et al. 2019:1 [ref. 36529]). Current status: Valid as Gymnogeophagus Miranda Ribeiro 1918. Cichlidae: Cichlinae.