WAcontheus
WBathyuriscus
WBojoscutellum
WChangaspis
WCorynexochida
WCorynexochina
WDolichometopidae
WDorypygidae
WEctillaenus
WHanburia gloriosa
WHemirhodon
WIllaenidae
WIllaenus
WIllaenus crassicauda
WIllaenus tauricornis
WKolihapeltis
WKootenia
WOgygopsis
WPanderia
WPanderiidae
WParalejurus
WPlaniscutellum
WScutellum (trilobite)
WStyginidae
WXiuqiella