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†order Arthrodira Woodward 1891 (armour-plated fish)

Placodermi

PaleoDB taxon number: 34302

Synonym: Arthrodiriformes Grande and Eastman 1986 (taxon 217761)

Parent taxon: Placodermi according to G. C. Young and J. A. Long 2014

Sister taxa: Acanthothoraci, Antiarcha, Brindabellaspida, Nessariostoma, Petalichthida, Petalichthyida, Pseudopetalichthyida, Ptyctodontida, Rhenanida, Stensioellida

Subtaxa: Actinolepidae, Actinolepidoidei, Africanaspis, Arctolepidae, Arctonema, Arenipiscis, Atlantidosteus, Belemnacanthus, Belosteus, Brachydeirus, Brachyosteus, Brachythoraci, Braunosteus, Bruntonichthys, Buchanosteus, Bullerichthys, Bungartius, Burrinijucosteus, Callognathus, Camuropiscidae, Cosmacanthus, Cyrtosteus, Deirosteus, Deveonema, Dicksonosteus, Eldenosteus, Errolosteus, Erromenosteus, Eskimaspis, Euantiarcha, Euarthrodira, Eubrachythoraci, Gemuendenaspis, Goodradigbeeon, Grazosteus, Groenlandaspis, Gyroplacosteus, Harrytoombsia, Holdenius, Hollardosteus, Incisoscutoidea, Incisoscutum, Kendrickichthys, Kimberia, Kimberleyichthys, Kueichowlepis, Latocamurus, Laurentaspis, Leptosteus, Malerosteus, Mcnamaraspis, Megaloplax, Murmur, Operchallosteus, Overtonaspis, Oxyosteus, Parabelosteus, Parabuchanosteus, Paramylostoma, Phlyctaeniidae, Phylctaeniida, Phyllolepida, Plourdosteus, Prescottaspis, Qataraspis, Rachiosteus, Rhenonema, Rolfosteus, Selenosteidae, Squamatognathus, Stegophthalami, Stuertzaspis, Synauchenia, Taemasosteus, Tafilalichthys, Tapinosteus, Taunaspis, Temnothoraci, Tiaraspis, Timanosteus, Toombsosteus, Torosteus, Trematosteus, Tropidosteus, Tubonasus, Wheathillaspis, Williamsaspis, Wuttagoonaspina, Yinosteus

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Ecology: nektonic carnivore