Alternative spelling: Selacha
Parent taxon: Elasmobranchii according to J. S. Nelson et al. 2016
Sister taxa: Agaleidae, Amelacanthus, Annulicorona, Aporomicrodus, Arduodens, Carcharopsis, Carinasubcorona, Celtiberina, Cestraciontidae, Changxingselache, Cladodontomorphi, Cladodontomorphii, Cladodus hassiacus, Cladodus wildungensis, Cladoselachida, Cladoselachii, Complanicorona, Coniunctio, Coronodontida, Eunemacanthus, Euselachiformes, Euselachii, Eychlaodus, Fragilicorona, Galeiformes, Galeomorphi, Glabrisubcorona, Gondwanodus, Ichthyodorulites, Labascicorona, Labrilancea, Lamna (Sphenodus) longidens, Lamna daviesii, 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, Serratocorona, Siamodus, Sphenodus, Sphenodus plana, Squalomorphi, Suaviloquentia, Thrinacodontidae, Undulaticorona, Xenacanthida
Subtaxa: none
Ecology: nektonic carnivore