Protozoa - Spumellaria - Orbiculiformidae
Parent taxon: Pyloniacea according to P. Zügel 1997
See also Kiessling 1995
Sister taxa: Catenopylidae, Patruliidae
Subtaxa: Orbiculiforma Orbiculiformella Pseudogodia Spongiostoma Spongostaurus
Ecology: passively mobile planktonic omnivore
Distribution:
• Paleocene of New Zealand (16 collections)
• Cretaceous of Antarctica (1), Austria (3), Azerbaijan (1), Canada (7: Nunavut), Czechia (1), Denmark (25), Germany (2), Japan (18), Malaysia (4), New Zealand (8), Oman (9), the Philippines (1), Poland (3), the Russian Federation (15), South Pacific (1), Trinidad and Tobago (2), Türkiye (1), United States (15: California)
• Jurassic to Cretaceous of Austria (2), Germany (1)
• Jurassic of Antarctica (16), Argentina (2), Austria (8), Canada (28: British Columbia), Germany (9), Hungary (1), Indonesia (2), Italy (6), Japan (28), Mexico (8), New Zealand (5), Oman (3), Peru (1), the Philippines (2), the Russian Federation (4), Slovakia (3), Slovenia (5), Spain (3), Switzerland (3), Türkiye (9), United States (21: Alaska, California, Oregon)
• Triassic of Austria (1), Canada (13: British Columbia), Cyprus (3), Mexico (5), Nicaragua (1), Türkiye (45)
• Permian of China (4), Japan (4), Thailand (12)
Total: 391 collections including 684 occurrences