PaleoDB taxon number: 394194
Synonym: Aethia Qian and Zhou 1984 [replaced name] (taxon 21831)
Full reference: H. Özdikmen. 2008. Nomenclatural changes for three preoccupied trilobites genera. Munis Entomology & Zoology 3:317-320
Parent taxon: Trilobita according to H. Özdikmen 2008
Sister taxa: Abakanopleura, Acantholenus, Acrohybus, Aglagalia, Agnostida, Agraulaeva, Aguaraya, Aidarella, Aldonaiidae, Alomataspis, Altajaharpes, Amechilus, Amgaspididae, Amginouyia, Ampellatocephalina, Anacopodia, Anomocarellidae, Antagmidae, Antagmopleura, Antatlaeva, Asaphida, Atopidae, Aulacopleurida, Auritamidae, Avalonia, Avascutellum, Avoninidae, Barklyella, Bathynotellus, Bathynotidae, Beikedamaspis, Bergerolimbus, Bicornipyge, Blayacina, Bondarevites, Brevitermierella, Bridgeia, Carmon, Catadoxides, Chakasskia, Changshaniidae, Chinensis, Chondroparia, Conoides, Cornovica, Corynexochida, Costonia, Crossoura, Curiaspis, Cuyanaspis, Cyclolenzellina, Dalmanites troosti, Deltacare, Dikelocephalidae, Edganocare, Ellipsocephaloididae, Ellipsuella, Ellsaspis, Entomostracites, Entsyna, Eodiscida, Eosaukia, Erbenochile, Esseigania, Eulomella, Eutrilobita, Fabulaspis, Folliceps, Fritzaspis, Galahetes, Gentilapsis, Gigmpeltis, Gigoutella, Giordanella, Goycoia, Hamashania, Harpetida, Harpida, Harpididae, Hercantyx, Hicksia, Holocephalinidae, Howelluella, Ignotogregatidae, Indigestus, Indiligens, Ishpella, Isocolidae, Issafenia, Issafeniella, Ityophoridae, Jamrogiidae, Jonotus, Jubileia, Judaiella, Juriietella, Kamlacus, Kanfuqingia, Kerbinella, Knechtelia, Kolpura, Kujandina, Leptopilus, Levisia, Libristoma, Lichida, Liriamnica, Llanoaspididae, Lomsucaspis, Lotosoides, Loxonepea, Loxopeltis, Lusampa, Mannschreckia, Mapaniidae, Mataninella, Mecophrys, Megalaspidicus, Megalurites, Meisterella, Meneghinella, Metapopristis, Missisquoiidae, Monkaspididae, Moretarva, Namanoiidae, Naraoiida, Neomalungia, Nepeidae, Ninaspis, Norina, Odontopleurida, Ogygiocaridinae, Olenellida, Olenida, Onchonotopsidae, Opisthoparia, Ordosiidae, Orictocara, Orienturus, Otekmaspis, Otenaspella, Oxygonaspis, Paichiashania, Palaeolentus, Palmeraspis, Paraplagiura, Paraplesiograulos, Pararania, Peculicephalina, Perissopyge, Phacopida, Phylacteridae, Piliolites, Planolimbus, Pliomerellus, Poculicephalina, Polycyrtaspididae, Proetida, Proparia, Pseudoacicaudus, Pseudoclelandia, Pseudocrecephalaspina, Pseudoliostracina, Pseudosalteria, Pseudosarkia, Pseudotermierella, Ptyttstrigis, Punctaspis, Redlichaspis, Redlichiida, Remopleuridacea, Repinaella, Resseria, Resseropsis, Rochaeva, Rowia, Sailycaspis, Sarkiidae, Scutelluidae, Sectigena, Selenocoryphe, Serksia, Serksioides, Sibiriopeltis, Smeathenia, Sonoraspis, Sphaerocare, Spizharaspis, Stittaspis, Sunaspididae, Tadakoustia, Taidonorus, Taplimella, Tazemmourtia, Thymurus, Tongxingaspis, Toxotis, Trapezocephalina, Trilobus, Trinia, Tuyunaspis, Ullaspis, Ulrickaspis, Utiidae, Validaspis, Volonellus, Westergardia, Whittardolithus, Winsteria, Wuaniidae, Zigzuella
Subtaxa: Paleoaethia rectangula
Type: Aethia rectangula