Parent taxon: Umbonulomorpha according to S. S. Brezina et al. 2021
See also Berning 2006, Di Martino and Taylor 2013, Di Martino and Taylor 2015, Gordon et al. 1994, Gordon and Taylor 2015, Guha and Gopikrishna 2007 and Schmidt 2003
Sister taxa: Batoporoidea, Lepralielloidea
Subtaxa: Arachnopusiidae Exechonellidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Costa Rica (4 collections), New Zealand (3), United States (4: Florida)
• Pliocene of Australia (3), New Zealand (3), Panama (2)
• Miocene to Oligocene of Australia (7)
• Miocene of Algeria (1), Australia (3), Colombia (1), India (1), Indonesia (3), Morocco (2), New Zealand (3), Romania (1), Spain (4)
• Oligocene to Miocene of Australia (4)
• Oligocene of Australia (2), United States (2: Mississippi)
• Eocene of New Zealand (2), Tonga (1)
• Paleocene to Eocene of New Zealand (1)
• Paleocene of Argentina (1)
• Cretaceous of Argentina (2), Mexico (1), United States (1: California)
Total: 62 collections including 81 occurrences