Alternative spelling: Plagiostomata
Parent taxon: Elasmobranchii according to J. Leidy 1873
See also Gadow 1898, Gunnell 1933, Hay 1902, Owen 1859 and Rapp 1946
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, Platylithophycus, Pleuracanthidae, Pleuracanthodii, Pristiorajea, Proselachii, Raineria, Rosaodus, Rugosicorona, Sacrisubcorona, Selachii, Serratocorona, Siamodus, Sphenodus, Sphenodus plana, Squalomorphi, Suaviloquentia, Thrinacodontidae, Undulaticorona, Xenacanthida
Subtaxa: Carcharidae Eulamiidae Hexeptranchidae Narcopterus Raiae
Ecology: nektonic carnivore
Distribution: