Cyclostomata

Cyclostomata includes 74 children:

• Corynotrypidae Dzik 1981
• Diaperoeciidae
• Diaperoeciidae Canu 1918
• Diastoporidae
• Eleidae d'Orbigny 1852
• Frondiporidae Busk 1875
• Hederellidae Kiepura 1973
• Horneridae Smitt 1867
• Lichenoporidae Smitt 1867
• Multisparsidae
• Multisparsidae Bassler 1935
• Oncousoeciidae
• Oncousoeciidae Canu 1918
• Plagioeciidae
• Plagioeciidae
• Plagioeciidae Canu 1918
• Stomatoporidae
• Stomatoporidae Pergens & Meunier 1886
• Tubuliporidae
• Tubuliporidae Johnston 1837
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