†Tanaodus St. John and Worthen 1875 (cartilaginous fish)
Chondrichthyes - Petalodontiformes - Petalodontidae
Parent taxon: Petalodontidae according to M. Ginter et al. 2010
Sister taxa: Antliodus, Chomatodus, Glossodus, Glyphanodus, Harpacodus, Itapyrodus, Lisgodus, Neopetalodus, Petalodus, Polyrhizodus
Subtaxa: Tanaodus wisei
Ecology: nektonic carnivore