Chondrichthyes - Petalodontiformes - Petalodontidae

Parent taxon: Petalodontidae according to M. Ginter et al. 2010

Sister taxa: Antliodus, Chomatodus, Glossodus, Glyphanodus, Harpacodus, Itapyrodus, Lisgodus, Neopetalodus, Polyrhizodus, Tanaodus

Subtaxa: Petalodus acuminatus, Petalodus allegheniensis, Petalodus arcuatus, Petalodus davisii, Petalodus destructor, Petalodus flabellula, Petalodus grandis, Petalodus hastingsii, Petalodus jewetti, Petalodus linearis, Petalodus ohioensis, Petalodus sagittatus

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Ecology: nektonic carnivore