Cyclostomatida or Cyclostomata, are an order of stenolaemate bryozoans consisting of 7+ suborders, 59+ families, 373+ genera, 666+ species.

• Suborder Articulina (2+ families, 9+ genera, 10+ species)
  • Family Crisiidae (8+ genera, 9+ species)
  • Family Crisuliporidae (1+ genera, 1+ species)
• Suborder Paleotubuliporina (4+ families, 4+ genera, 47+ species)
  • Family Corynotrypidae (4+ genera, 27+ species)
  • Family Sagenellidae (2+ genera, 2+ species)
  • Family Crownoporidae (7+ genera, 17+ species)
  • Family Kukersellidae (1+ genera, 1+ species)
• Suborder Tubuliporina (22 families, 175+ genera, 384+ species)
  • Family Stomatoporidae (8+ genera, 16+ species)
  • Family Cinctiporidae (4+ genera, 8+ species)
  • Family Oncousoeciidae (5+ genera, 47+ species)
  • Family Oncousoeciidae (22+ genera, 69+ species)
  • Family Tubuliporidae (7+ genera, 10+ species)
  • Family Diploclemidae (1+ Genus 1+ species)
  • Family Multiparsidae (1+ genera, 1+ species)
  • Family Diploclemidae (40+ genera, 74+ species)
  • Family Celluliporidae (8+ genera, 8+ species)
  • Family Plagioeciidae (38+ genera, 64+ species)
  • Family Eleidae (8+ genera, 8+ species)
  • Family terviidae (4+ genera, 6+ species)
  • Family Spiroporidae (1+ Genus, 1+ species)
  • Family Diastoporidae (4+ genera, 7+ species)
  • Family Annectocymidae (1+ genera, 5+ species)
  • Family Bereniceidae (1+ genera, 1+ species)
  • Family Filisparsidae (3+ genera, 3+ species)
  • Family Mecynoeciidae (1+ genera, 1+ species)
  • Family Diaperoeciidae (3+ genera, 3+ species)
  • Family Entalophoridae (11+ genera, 11+ species)
  • Family Pustuloporidae (3+ genera, 3+ species)
• Suborder Fascilculina (8+ families, 34+ genera, 55+ species)
  • Family Frondiporidae (9+ genera, 11+ species)
  • Family Fasciculiporidae (1+ genera, 1+ species)
  • Family Fascigeridae (1+ genera, 1+ species)
  • Family Theonoidae (14+ genera, 23+ species)
  • Family Actinoporidae (1+ genera, 9+ species)
  • Family Siphoniotyphlidae (2+ genera, 2+ species)
  • Family Hastingsiidae (1+ genera, 3+ species)
  • Family Semiceidae (5+ genera, 5+ species)
• Suborder Cancellata (11+ families, 89+ genera, 99+ species)
  • Family Horneridae (5+ genera, 8+ species)
  • Family Stigmatoechidae (1+ genera, 1+ species)
  • Family Stegohorneridae (1+ genera, 1+ species)
  • Family Petaloporidae (13+ genera, 13+ species)
  • Family Calvetiidae (1+ genera, 1+ species)
  • Family Crisinidae (15+ genera, 18+ species)
  • Family Crassodiscoporidae (1+ genera, 1+ species)
  • Family Ctyididae (27+ genera, 28+ species)
  • Family Pseudidmoneidae (1+ genera, 1+ species)
  • Family Radioporidae (23+ genera, 26+ species)
  • Family Canaliporidae (1+ genera, 1+ species)
• Suborder Cerioporina (10+ families, 60+ genera, 69+ species)
  • Family Cerioporidae (40+ genera, 47+ species)
  • Family Heteroporidae (2+ genera, 2+ species)
  • Family Leiosoeciidae (4+ genera, 4+ species)
  • Family Densiporidae (1+ genera, 1+ species)
  • Family Tretocycloeciidae (1+ genera, 1+ species)
  • Family Cavidae (3+ genera, 5+ species)
  • Family Corymboporidae (4+ genera, 4+ species)
  • Family Gungellidae (1+ genera, 1+ species)
  • Family Pseudocerioporidae (1+ genera, 1+ species)
• Suborder Rectangulata (2+ families, 2+ genera, 2+ species)
  • Family Lichenoporidae (1+ genera, 1+ species)
  • Family Disporellidae (1+ genera, 1+ species)

References

• http://www.alientravelguide.com/science/biology/life/animals/bryozoa/stenolae/cyclosto/