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), Australia (1), Austria (3), Azerbaijan (1), Canada (7: Nunavut), the Czech Republic (1), Denmark (25), Germany (2), Japan (18), Malaysia (4), New Zealand (8), Oman (9), the Philippines (1), Poland (3), the Russian Federation (15), Trinidad and Tobago (2), Turkey (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), Turkey (9), United States (21: Alaska, California, Oregon)
• Triassic of Austria (1), Canada (13: British Columbia), Cyprus (3), Mexico (5), Nicaragua (1), Turkey (45)
• Permian of China (4), Japan (4), Thailand (12)
Total: 391 collections including 685 occurrences