Thayeria Eigenmann [C. H.] 1908:94 Fem. Thayeria obliquus [obliqua] Eigenmann 1908. Type by original designation (also monotypic). Type species originally spelled obliquus but emended by Eigenmann 1910:437 to obliqua to agree in gender with genus. •Valid as Thayeria Eigenmann 1908 -- (Géry 1977:514 [ref. 1597], Lima & Moreira in Reis et al. 2003:157 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Moreira & Lima 2017:137 [ref. 35664], Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Thayeria Eigenmann 1908. Acestrorhamphidae: Thayeriinae.