Parent taxon: Lepraliomorpha according to B. Berning 2006
See also Di Martino and Taylor 2015, Gordon et al. 1994, Guha and Gopikrishna 2007 and Schmidt 2003
Sister taxa: none
Subtaxa: Bitectiporidae Smittinidae Watersiporidae
Type: Smittina
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Barbados (1 collection), Costa Rica (4), Greece (1), Greenland (2), Italy (4), New Zealand (2), United States (14: California, Florida, New York, North Carolina, South Carolina, Virginia)
• Pliocene of Antarctica (2), Australia (2), Greece (1), Jamaica (1), New Zealand (5), Panama (7), Portugal (1), Spain (3)
• Miocene to Oligocene of Australia (10)
• Miocene of Algeria (2), Australia (2), the Czech Republic (12), Egypt (1), France (2), Germany (1), Hungary (1), India (4), Indonesia (2), Morocco (3), New Zealand (2), Panama (2), Romania (2), Spain (8)
• Oligocene to Miocene of Australia (6)
• Oligocene of Australia (2), Germany (1), New Zealand (1), United States (9: Alabama, Mississippi)
• Eocene of India (2), New Zealand (3), the United Kingdom (1), United States (18: Alabama, Florida, Georgia, Mississippi)
• Paleocene of United States (1: Alabama)
• Cretaceous of United States (1: Alabama)
Total: 149 collections including 309 occurrences