†family Heslerodidae Maisey 2010 (elasmobranch)
Chondrichthyes - Ctenacanthiformes - Heslerodidae
Parent taxon: Ctenacanthiformes according to J. P. M. Hodnett et al. 2012
Sister taxa: Acandylacanthus, Arauzia, Ctenacanthidae, Ctenacanthoidea, Goodrichthys, Kaibabvenator, Moyacanthus, Nanoskalme, Neosaivodus, Pororhiza, Saivodus
Subtaxa: Heslerodus
Ecology: nektonic carnivore
Distribution:
• Permian of the Russian Federation (3 collections), United States (2: Arizona, Kansas)
• Carboniferous to Permian of the Russian Federation (1)
• Carboniferous of Greenland (1), the Russian Federation (1), United States (13: Illinois, Indiana, Nebraska, Ohio, Pennsylvania, Wyoming)
Total: 21 collections each including a single occurrence