Parent taxon: Thecideida according to M. A. Bitner and A. Müller 2017
Sister taxon: Thecospiroidea
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of New Zealand (1 collection), Spain (1), Vanuatu (9)
• Pliocene of the Dominican Republic (3), New Zealand (3), Spain (1)
• Miocene of Bulgaria (2), Cuba (1), Fiji (4), Indonesia (1), Italy (5), New Zealand (3), Spain (1)
• Oligocene of France (6), Germany (3), Iran (1), Puerto Rico (2)
• Whaingaroan of New Zealand (1)
• Eocene of Cuba (1), France (2), Germany (1), Hungary (1), Italy (1), New Zealand (9), Tonga (1), Ukraine (1), United States (1: South Carolina)
• Paleocene of the Netherlands (1), Spain (2), United States (1: Alabama)
• Cretaceous of Argentina (1), Belgium (8), the Czech Republic (8), France (3), Germany (3), the Netherlands (5), Romania (1), Spain (1), the United Kingdom (5)
• Jurassic of France (8), Germany (5), Israel (2), Poland (5), Portugal (1), Romania (2), the United Kingdom (13), United States (1: Utah)
• Triassic of Austria (7), China (1)
Total: 150 collections including 169 occurrences