Třída: Actinopterygii - paprskoploutví
Řád: Siluriformes - sumci
Čeleď: Pimelodidae - anténovcovití

Reference: Lundberg, J. G., F. Mago-Leccia & P. Nass. 1991. Exallodontus aguanai, a new genus and species of Pimelodidae (Pisces: Siluriformes) from deep river channels of South America, and delimitation of the subfamily Pimelodinae. Proc. Biol. Soc. Wash. v. 104 (no. 4): 840-869.