Family Tretocycloeciidae Canu 1919 (bryozoan)
Stenolaemata - Tubuliporata - Tretocycloeciidae
Parent taxon: Cerioporina according to R. S. Bassler 1953
Sister taxa: Cavidae, Cerioporidae, Corymboporidae, Densiporidae, Heteroporidae, Leiosoeciidae
Subtaxa: Alveolaria Coscinoecia Paratretocycloecia Partretocycloecia Psilosolen Tretocycloecia
Type: Tretocycloecia
Ecology: stationary epifaunal suspension feeder
Distribution:
• Miocene of Czechia (2 collections), Germany (1)
• Eocene of United States (1: Mississippi)
• Paleocene of United States (1: New Jersey)
• Cretaceous of the United Kingdom (1)
Total: 6 collections each including a single occurrence