Gymnolaemata - Cheilostomata - Onychocellidae
Parent taxon: Microporoidea according to A. V. Koromyslova and V. B. Seltser 2020
See also Bassler 1953, Berning 2006, Bock 2006, Brown 1958, Cheetham 1962, Di Martino and Taylor 2013, Di Martino and Taylor 2014, Gordon 2012, Gordon and Taylor 1999, Gordon and Taylor 2015, Pouyet 2000, Schmidt 2003, Taylor and Martha 2017 and Zágoršek and Kroh 2003
Sister taxa: Acanthodesiomorpha, Alysidiidae, Aspidostomatidae, Calescharidae, Cardabiellidae, Chlidoniidae, Coscinopleuridae, Macroporidae, Microporidae, Ogivalia, Poricellariidae, Setosellidae, Vibracella, Volviflustrellaria
Subtaxa: Aechmella Cheethamia Chondriovelum Collura Dictuonia Distefanella Ehrhardina Euritina Floridina Floridinella Holsacella Hoplitaechmella Inversaria Latereschara Matyashegyella Nudicella Nudonychocella Ogiva Onychocella Onychocellaria Otiochmella Paraechmellina Pseudolunulites Radulopora Rectonychocella Reptolunulites Rhagasostoma Rhebasia Semieschara Smittipora Solenonychocella Tornipora Virgocella Woodipora
Type: Onychocella
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Costa Rica (3 collections), Greece (1), Italy (1), United States (5: Florida)
• Pliocene of Panama (2), Portugal (1), Spain (3)
• Miocene to Oligocene of Australia (12)
• Miocene of Algeria (1), Australia (2), Colombia (1), Czechia (7), Egypt (1), Germany (1), Hungary (1), India (2), Indonesia (3), Morocco (3), Panama (1), Romania (1), Spain (8)
• Oligocene to Miocene of Australia (7)
• Oligocene of United States (8: Alabama, Mississippi)
• Eocene of India (2), New Zealand (1), the United Kingdom (1), United States (12: Alabama, Florida, Georgia, Mississippi)
• Paleocene to Eocene of New Zealand (1)
• Paleocene of Austria (2), Denmark (3), Sweden (1), United States (3: Alabama, New Jersey)
• Cretaceous of Algeria (1), Australia (6), Austria (1), Belarus (1), Belgium (1), Czechia (2), France (6), Germany (10), Kazakhstan (1), Mexico (1), the Netherlands (1), New Zealand (1), the Russian Federation (4), Turkmenistan (4), the United Kingdom (19), United States (3: Arkansas, California), Uzbekistan (3)
Total: 166 collections including 260 occurrences