Parent taxon: Trilobita according to J. M. Adrain 2011
See also Choi and Kim 2006 and Jell and Adrain 2002
Sister taxa: Aglagalia, Agraulaeva, Aguaraya, Aldonaiidae, Altajaharpes, Amechilus, Amgaspididae, Ampellatocephalina, Anacopodia, Antagmidae, Antatlaeva, Atopidae, Auritamidae, Avoninidae, Batchatiella, Bathynotidae, Beikedamaspis, Bergerolimbus, Burlingiidae, Carmon, Chinensis, Corynexochida, Crossoura, Curiaspis, Cuyanaspis, Cyclolenzellina, Dalmanites troosti, Deltacare, Devonocoryphe, Edganocare, Elleria, Elleria morani, Ellipsocephaloididae, Ellipsuella, Entomostracites, Erbenochile, Eulomella, Eutrilobita, Fabulaspis, Faciura, Gentilaspis, Gigmpeltis, Goycoia, Harpetida, Helioproetoides, Holocephalinidae, Howelluella, Idiorapha, Ignotogregatidae, Indigestus, Irvingelloides, Ishpella, Isocolidae, Issafenia, Ityophoridae, Jamrogiidae, Jonotus, Juriietella, Kamlacus, Kanfuqingia, Leptopilus, Libristoma, Lichida, Llanoaspididae, Loxopeltis, Lusampa, Mapaniidae, Megalaspidicus, Meneghinella, Metapopristis, Monkaspididae, Moolatrilo, Moretaeva, Moretarva, Namanoiidae, Neochilonorria, Neomalungia, Neotaenicephalus, Nepeidae, Odontopleurida, Ogygiocaridinae, Olenida, Onchonotopsidae, Opisthoparia, Orictocara, Otekmaspis, Otenaspella, Paichiashania, Paleoaethia, Parakingaspidoides, Pararania, Peculicephalina, Perissopyge, Phacopida, Piliolites, Pliomerellus, Poculicephalina, Polycyrtaspididae, Prodamesella, Proetida, Proparia, Pseudoacicaudus, Pseudoclelandia, Pseudocrecephalaspina, Pseudosalteria, Pseudosarkia, Pseudotermierella, Ptyttstrigis, Punctaspis, Redlichiida, Remopleuridacea, Repinaella, Resseria, Resseropsis, Rochaeva, Sarkiidae, Serksia, Serksioides, Sibiriopeltis, Sphaerocare, Spizharaspis, Stittaspis, Sukhanaspis, Sunaspididae, Taidonurus, Taplimella, Tazemmourtia, Thymurus, Toxotis, Trapezocephalina, Triarthrella, Trilobus, Tuberaspis, Tuyunaspis, Ulrickaspis, Utiidae, Westergardia, Winsteria, Wuaniidae, Zigzuella
Subtaxa: Changshania Changshanocephalus Kazelia Mecophrys Parachangshania Paraqingshuiheella Wentsuia
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Taoyuanian of China (4 collections), the Russian Federation (2), South Korea (2)
• Cambrian of Australia (22), the Russian Federation (1), South Korea (1), Spain (1)
Total: 33 collections including 36 occurrences