Chondrichthyes - Protodontidae
Parent taxon: Elasmobranchii according to M. Ginter et al. 2010
See also Nelson et al. 2016 and Turner and Miller 2008
Sister taxa: Amelacanthus, Annulicorona, Antarctilamniformes, Aporomicrodus, Arduodens, Carcharopsis, Carinasubcorona, Celtiberina, Cestraciontidae, Changxingselache, Cladodontomorphi, Cladodontomorphii, Cladodus hassiacus, Cladodus wildungensis, Cladoselachida, Cladoselachii, Complanicorona, Coniunctio, Coronodontida, Eunemacanthus, Euselachiformes, Euselachii, Fragilicorona, Galeiformes, Glabrisubcorona, Gondwanodus, Ichthyodorulites, Kannathalepididae, Labascicorona, Labrilancea, Leonodus, Lesnilomia, Listracanthidae, Lobaticorona, Meishanselache, Minuticorona, Myliobatiformes, Omalodontiformes, Oniscina, Ornathiliabrilance, Ornatilabrilancea, Orodontida, Osteodonti, Parvicorona, Parvidiabolus, Parviscapha, Phoebodontiformes, Physonemus, Plagiostomi, Platylithophycus, Pleuracanthidae, Pleuracanthodii, Pristiorajea, Proselachii, Raineria, Rosaodus, Rugosicorona, Sacrisubcorona, Selachii, Selachimorpha, Serratocorona, Siamodus, Suaviloquentia, Undulaticorona, Xenacanthida, Xenacanthimorpha
Subtaxa: Dendrodus Protodus Stigmodus
Ecology: nektonic carnivore
Distribution: found only at Restigouche River Bridge (Devonian of New Brunswick)