WAgnaridae
WArchaeobalanidae
WArtotrogidae
WBranchinectidae
WBranchipodidae
WPoecilostomatoida
WChaetiliidae
WChirocephalidae
WClam shrimp
WCyclopidaeWCyzicidae
WDaphniidae
WGnathiidae
WHalophilosciidae
WLimnadiidae
WPorcellionidae
WScalpellidae
WScyphacidae
WThamnocephalidae
WNotostraca