Alternative spellings: Squalomorphii, Squalomorphii
Parent taxon: Elasmobranchii according to R. van der Laan 2019
See also Biddle 1993, Cahuzac et al. 2007, Duffin and Ward 1993, Engelbrecht et al. 2017, Ginter et al. 2010, Johns 1997, Long 1992, Sepkoski 2002, Stumpf and Kriwet 2019, Wueringer et al. 2009 and Yamagishi 2004
Sister taxa: Agaleidae, Amelacanthus, Annulicorona, Aporomicrodus, Arduodens, Batomorphi, Carcharopsis, Carinasubcorona, Celtiberina, Cestraciontidae, Changxingselache, Cladodontomorphi, Cladodontomorphii, Cladodus hassiacus, Cladodus wildungensis, Cladoselachida, Cladoselachii, Complanicorona, Coniunctio, Coronodontida, Eunemacanthus, Euselachiformes, Eychlaodus, Fragilicorona, Galeiformes, Galeomorphi, Glabrisubcorona, Gondwanodus, Ichthyodorulites, Labascicorona, Labrilancea, Lamna (Sphenodus) longidens, Leonodus, Lesnilomia, Lobaticorona, Lugalepididae, Mcmurdodontidae, Meishanselache, Minuticorona, Oniscina, Ornathiliabrilance, Ornatilabrilancea, Orodontida, Orthacodus, Ostenoselachidae, Osteodonti, Parvicorona, Parvidiabolus, Parviscapha, Physonemus, Plagiostomi, Platylithophycus, Pleuracanthidae, Pleuracanthodii, Pristiorajea, Proselachii, Raineria, Rosaodus, Rugosicorona, Sacrisubcorona, Selachii, Serratocorona, Siamodus, Sphenodus, Sphenodus plana, Suaviloquentia, Thrinacodontidae, Undulaticorona, Xenacanthida
Subtaxa: Echinorhiniformes Hexanchida Hexanchiformes Pristiophoriformes Protospinaciformes Squaliformes Squatiniformes
Ecology: nektonic carnivore