PaleoDB taxon number: 217763
Parent taxon: Arthrodira according to G. C. Young 2010
Sister taxa: Acanthaspida, Actinolepina, Africanaspis, Arctolepidae, Arctonema, Arenipiscis, Atlantidosteus, Belemnacanthus, Belosteus, Brachydeirina, Brachydeirus, Brachyosteus, Brachythoraci, Braunosteus, Bruntonichthys, Buchanosteus, Bullerichthys, Bungartiidae, Burrinijucosteus, Camuropiscidae, Coccosteina, Cyrtosteus, Deirosteus, Deveonema, Dicksonosteus, Eldenosteus, Errolosteus, Erromenosteus, Eskimaspis, Euantiarcha, Euarthrodira, Eubrachythoraci, Gemuendenaspis, Goodradigbeeon, Grazosteus, Groenlandaspis, Gyroplacosteus, Harrytoombsia, Heterostiina, Holdenius, Hollardosteus, Holonematina, Incisoscutoidea, Incisoscutum, Kendrickichthys, Kimberleyichthys, Kueichowlepis, Latocamurus, Laurentaspis, Leptosteus, Malerosteus, Mcnamaraspis, Megaloplax, Murmur, Mylostomatidae, Operchallosteus, Overtonaspis, Oxyosteus, Pachyosteidae, Pachyosteina, Parabelosteus, Parabuchanosteus, Paramylostoma, Phlyctaenina, Plourdosteus, Prescottaspis, Qataraspis, Rachiosteus, Rhachiosteidae, Rhenonema, Rolfosteus, Selenosteidae, Squamatognathus, Stegophthalami, Stuertzaspis, Synauchenia, Taemasosteus, Tafilalichthys, Tapinosteus, Taunaspis, Temnothoraci, Tiaraspis, Timanosteus, Titanichthyidae, Toombsosteus, Torosteus, Trematosteus, Tropidosteus, Tubonasus, Wheathillaspis, Williamsaspis, Wuttagoonaspina, Yinosteus, Actinolepidoidei
Subtaxa: none
Ecology: nektonic carnivore