Parent taxon: Loftusiida according to E. Robinson and K. J. Cunningham 2022
Sister taxa: Ataxophragmioidea, Coskinolinidae, Textulariellidae
Subtaxa: Acervulinidae Spirocyclinidae
Ecology: stationary semi-infaunal omnivore
Distribution:
• NN21 of Indian Ocean (3 collections)
• G. truncatulinoides PRSZ of North Atlantic (1)
• Quaternary of Barbados (2), Brazil (1), France (4), French Polynesia (1), Greece (2), Indian Ocean (6), Italy (2), Japan (4), Jordan (1), Mayotte (2), New Caledonia (2), Saudi Arabia (1), United States (4: Florida, Hawaii)
• NN16 of Indian Ocean (1)
• Pliocene to Pleistocene of Saudi Arabia (1)
• Pliocene of Antigua and Barbuda (1), Egypt (3), India (7), Indian Ocean (6), Italy (2), New Zealand (1)
• Miocene to Pliocene of Australia (1), Jamaica (1)
• Miocene of Australia (2), Austria (3), Cape Verde (1), Cuba (1), Cyprus (2), Egypt (5), France (5), India (1), Indian Ocean (12), Indonesia (1), Italy (6), Malaysia (2), Romania (2), Spain (2), Türkiye (1)
• Oligocene of Indonesia (1), Iran (2), Italy (5), Spain (7)
• Eocene to Oligocene of Greece (2)
• Eocene of Austria (30), Greece (1), Hungary (2), Iran (1), Iraq (7), Italy (29), Maldives (3), Romania (3), Slovenia (1), Spain (5), Tonga (1), United States (5: Florida)
• Paleocene to Eocene of Greece (5), India (36), Iraq (10)
• Paleocene of China (5), Croatia (1), Greece (3), Iran (1), Italy (2), Türkiye (1)
• Cretaceous of Austria (2), Spain (1)
• Jurassic of Czechia (1), Greece (1), Italy (3), Morocco (2), Saudi Arabia (6), Slovenia (5)
Total: 296 collections including 341 occurrences