†superfamily Cyzicoidea Stebbing 1910 (clam shrimp)
Parent taxon: Spinicaudata according to C. C. Lana and I. S. Carvalho 2002
See also Tasch 1969
Sister taxa: Eosestherioidea, Limnadioidea, Lioestheriidae, Shipingiidae
Subtaxa: Cyzicidae
Type: Cyzicus
Ecology: slow-moving nektobenthic suspension feeder-detritivore
Distribution:
• Cretaceous of Argentina (1 collection), Brazil (1), Mongolia (1), Thailand (1), United States (1: Texas)
• Jurassic of Argentina (1), Brazil (5), the United Kingdom (1)
• Triassic of Canada (1: Nova Scotia), Germany (5), United States (10: New Jersey, North Carolina, Pennsylvania, Texas, Virginia)
Total: 28 collections including 32 occurrences