Megadontognathus Mago-Leccia [F.] 1994:38 Masc. Megadontognathus cuyuniense Mago-Leccia 1994. Type by original designation (also monotypic). •Valid as Megadontognathus Mago-Lessia 1994 -- (Campos-da-Paz 1999:1041 [ref. 24190], Albert in Reis et al. 2003:499 [ref. 27061], Triques 2005:144 [ref. 28939], Albert & Crampton 2009:90 [ref. 30049], Tagliacollo et al. 2016:30 [ref. 34087] in Apteronotini, Ferraris et al. 2017:[9] [ref. 35236]). Current status: Valid as Megadontognathus Mago-Leccia 1994. Apteronotidae: Apteronotinae.