Aglaspidida Squamacula Bailongia Tegopelte Helmetia Beckwithia typa Soomaspis Artiopoda Luohuilinella Molaria Kwanyinaspis Emucarididae Tariccoia Aglaspis Kuamaia Liwia Emeraldella Franklinella Acanthomeridion Australaglaspis Saperion Kangacaris Xandarella Falcatamacaris Sinoburius Liwiidae Kodymirus Pygmaclypeatus Cindarella Nektaspida Aglaspoides Arthroaspis Cyclopites Phytophilaspis Emucaris Sidneyia Misszhouia Buenaspis Retifacies Cheloniellon Naraoiidae Cheloniellida Naraoia List of arthropods of the Cambrian Period