Parent taxon: Neocheilostomina according to D. P. Gordon 2012
See also Di Martino and Taylor 2015, Guha and Gopikrishna 2007 and Schmidt 2003
Sister taxa: Adeonoidea, Ascophorina, Austroflustra, Bicorniferidae, Bifaxarioidea, Brettia, Brydonellidae, Buguloidea, Catenicelloidea, Cellarioidea, Celleporoidea, Chlidoniopsoidea, Conescharellinoidea, Cuvillieridae, Dysnoetoporoidea, Euthyriselloidea, Flustroidea, Fusicellariidae, Hoeverella, Klugeflustra, Mamilloporoidea, Mourellinidae, Neoflustra, Pseudolepralioidea, Schizoporelloidea, Scorioporoidea, Siphonicytaroidea, Skyloniidae, Smittinoidea, Taeniocellaria, Taenioporinoidea, Urceoliporoidea
Subtaxa: Bimicroporella Didymosellidae
Type: Didymosella
Ecology: stationary epifaunal suspension feeder
Distribution:
• Pliocene of Australia (1 collection), New Zealand (2)
• Miocene to Pliocene of Australia (1)
• Miocene to Oligocene of Australia (5)
• Miocene of Australia (2), Indonesia (1), New Zealand (1)
• Oligocene to Miocene of Australia (4)
• Oligocene of Australia (3), New Zealand (1), United States (5: Alabama)
• Eocene of India (2), United States (3: Florida)
Total: 31 collections including 35 occurrences