Alternative spellings: Antiarcha, Antiarcha
Synonyms: Antiarchi Cope 1885, Antiarchiformes Grande and Eastman 1986
Parent taxon: Placodermi according to R. van der Laan 2019
See also Denison 1975, Denison 1978, Dineley and Metcalf 1999, Gadow 1898, Grande and Eastman 1986, Hay 1902, Long 2011, Moloshnikov 2007, Nelson et al. 2016, Sepkoski 2002, Thomson and Thomas 2001 and Young 2010
Sister taxa: Acanthothoraci, Acanthothoraciformes, Arthrodira, Asiacanthus, Austroptyctodus, Bianchengichthys, Brindabellaspida, Campbellodus, Changyonophyton, Coccostei, Coelosteichthys, Cratoselachiidae, Deinodus, Entelognathus, Hybosteus, Neopetalichthys, Nessariostoma, Oestophorus, Petalichthida, Petalichthyida, Petalichthyida, Pseudopetalichthyida, Pseudopetalichthyiformes, Ptychostei, Ptyctodontida, Rhenanida, Rhenaniformes, Sedowichthys, Stensioelliformes, Tollichthys, Wangolepis, Yunnanacanthus
Subtaxa: Asterolepidiformes Bothriolepidiformes Bothriolepoidei Hyrcanaspis Jiangxilepididae Liujiangolepidae Macrodontophion Macropetalichthyiformes Minicranidae Phymolepis Pterichthyodid Ptyctodontiformes Silurolepidae Sinolepiformes Walterilepis Xichonolepis Yunnanolepidiformes Yunnanolepidoidei Zhanjilepis