Actaeus, Almenia, Anatifopsis, Arachnida, Arachnomorpha, Aristocaris, Bostrichopus, Bradoriida (syn. Bradoriid, Archaeocopida), Bundenbachiellus, Burgessia, Cambropachycope, Chelicerata, Chengjiangocaris, Chuandianella, Cindarella, Clypecaris, Conchostraca, Conciliterga, Corcorania, Crustacea, Dalmaniopsis, Dicerocaris, Dinocarida, Dongshanocaris, Douglasocaris, Duslia, Emeiella, Ercaia, Forfexicaris, Fuxianhuia, Gaoqiaioella, Goticaris, Guangweicarididae, Habelia, Hanburia, Helmetia, Henningsmoenicaris, Hexapoda, Huangshandongia, Isoxys, Jianfengia, Jiucunella, Kablikia, Kleptothule, Kuamaia, Liantuoia, Longquania, Mandibulata, Marrella, Marrelomorpha, Martinssonia, Meristosomo, Merostomoidea, Molaria, Mollisonia, Motina, Myriapoda, Naptile, Nektaspida, Occacaris, Odaraia, Orstenocarida, Orstenotubulus, Oxyuropoda, Pahvantia, Panlongia, Parapaleomerus, Parapunctella, Paratrilobita, Parvancorinomorpha, Pauloterminus, Pectocaris, Pisinnocaris, Plenocaris, Priscansermarinus, Protocarcinus, Protocaris, Pseudarthron, Pseudoarctolepis, Pseudoiulia, Pygmaclypeatus, Quasicaris, Rehbachiella, Retifacies, Rhombicalvaria, Saperion, Schinderhannes, Schizodiscus, Serracaris, Shafferia, Sinoburius, Skaracarida, Skioldia, Thylacocephala, Trilobita, Urokodia, Utahcaris, Walossekia, Yohoia

Onychophora, Tardigrada