1. Subfamily Cidarinae Gray, 1825
   1. Genus Almucidaris Blake & Zinsmeister, 1991 †
   2. Genus Calocidaris H.L. Clark, 1907
   3. Genus Centrocidaris A. Agassiz, 1904
   4. Genus Chondrocidaris A. Agassiz, 1863
   5. Genus Chorocidaris Ikeda, 1941
   6. Genus Cidaris Leske, 1778
   7. Genus Compsocidaris Ikeda, 1939
   8. Genus Cyathocidaris Lambert, 1910 †
   9. Genus Eucidaris Pomel, 1883
   10. Genus Hesperocidaris Mortensen, 1928
   11. Genus Kionocidaris Mortensen, 1932
   12. Genus Lissocidaris Mortensen, 1939
   13. Genus Tretocidaris Mortensen, 1903
   14. Genus Triassicidaris Smith, 1994 †
   15. Genus Actinocidaris Mortensen, 1928 accepted as Prionocidaris A. Agassiz, 1863 (subjective junior synonym)
   16. Genus Cidarites auct. accepted as Cidaris Leske, 1778 (invalid name (ICZN 4th Ed. Article 20))
   17. Genus Cydaris accepted as Cidaris Leske, 1778 (misspelling)
   18. Genus Dorocidaris A. Agassiz, 1869 accepted as Cidaris Leske, 1778 (objective junior synonym)
   19. Genus Eucidarus accepted as Eucidaris Pomel, 1883 (misspelling)
   20. Genus Gymnocidaris A. Agassiz, 1863 accepted as Eucidaris Pomel, 1883 (junior homonym of Gymnocidaris L. Agassiz, 1838)
   21. Genus Orthocidaris A. Agassiz, 1863 accepted as Cidaris Leske, 1778 (preoccupied (non Cotteau, 1862); subjective junior synonym of Cidaris)
   22. Genus Prophyllacanthus Cutress, 1980 † accepted as Prionocidaris A. Agassiz, 1863 (subjective junior synonym)
   23. Genus Schleinitzia Studer, 1876 accepted as Prionocidaris A. Agassiz, 1863 (junior subjective synonym of Prionocidaris)
2. Subfamily Goniocidarinae Mortensen, 1928
   1. Genus Austrocidaris H.L. Clark, 1907
   2. Genus Goniocidaris Desor in Agassiz & Desor, 1846
   3. Genus Ogmocidaris Mortensen, 1921
   4. Genus Psilocidaris Mortensen, 1927
   5. Genus Rhopalocidaris Mortensen, 1927
   6. Genus Schizocidaris Mortensen, 1903
   7. Genus Aspidocidaris Mortensen, 1928 accepted as Goniocidaris (Aspidocidaris) Mortensen, 1928 (accepted at subgenus rank)
   8. Genus Cyrtocidaris Mortensen, 1927 accepted as Goniocidaris (Cyrtocidaris) Mortensen, 1927 (accepted at subgenus rank)
   9. Genus Discocidaris Döderlein, 1885 accepted as Goniocidaris (Discocidaris) Döderlein, 1885 (accepted at subgenus rank)
   10. Genus Goniocidaria accepted as Goniocidaris Desor in Agassiz & Desor, 1846 (misspelling of Goniocidaris)
   11. Genus Petalocidaris Mortensen, 1903 accepted as Goniocidaris (Petalocidaris) Mortensen, 1903 (accepted at subgenus rank)
   12. Genus Stephanocidaris A. Agassiz, 1863 accepted as Goniocidaris Desor in Agassiz & Desor, 1846 (objective junior synonym)
   13. Genus Adelcidaris Cotton & Godfrey, 1942 (uncertain > nomen dubium)
3. Tribe Phyllacanthina Smith & Wright, 1989
   1. Genus Phyllacanthus Brandt, 1835
   2. Genus Leiocidaris Desor, 1855 accepted as Phyllacanthus Brandt, 1835 (subjective junior synonym)
   3. Genus Lhyllacanthus accepted as Phyllacanthus Brandt, 1835 (spelling mistake)
   4. Genus Peiocidaris accepted as Leiocidaris Desor, 1855 accepted as Phyllacanthus Brandt, 1835 (spelling mistake)
4. Genus Plegiocidaris Pomel, 1883 †
5. Subfamily Stereocidarinae Lambert, 1900
   1. Genus Hirudocidaris Smith & Wright, 1989 †
   2. Genus Phalacrocidaris Lambert, 1902
   3. Genus Sinaecidaris Fourtau, 1921 †
   4. Genus Stereocidaris Pomel, 1883
   5. Genus Temnocidaris Cotteau, 1863 †
   6. Genus Anomocidaris A. Agassiz & H.L. Clark, 1907 accepted as Phalacrocidaris Lambert, 1902 (Subjective junior synonym)
   7. Subtribe Cidarina Gray, 1825 accepted as Cidarinae Mortensen, 1928 accepted as Cidarinae Gray, 1825 (accepted at subfamily level)
   8. Subtribe Ctenocidarina Mortensen, 1928 accepted as Ctenocidaridae Mortensen, 1928 (accepted at family level)
   9. Subtribe Goniocidarina Mortensen, 1928 accepted as Goniocidarinae Mortensen, 1928 (accepted at subfamily level)
   10. Subtribe Histocidarina Lambert, 1900 accepted as Histocidaridae Lambert, 1900 (accepted at family level)
   11. Subtribe Rhabdocidarina Lambert, 1900 † accepted as Rhabdocidaridae Lambert, 1900 † (accepted at family level)
   12. Genus Santonicidaris Vadet, Nicolleau & Cottard, 2013 † accepted as Stereocidaris Pomel, 1883 (subjective junior synonym)
   13. Subtribe Stereocidarina Lambert, 1900 accepted as Stereocidarinae Lambert, 1900 (accepted at subfamily level)
   14. Subtribe Stylocidarina Mortensen, 1903 accepted as Stylocidarinae Mortensen, 1903 (accepted at subfamily level)
   15. Genus Carantonicidaris Vadet, Nicolleau & Cottard, 2013 † (uncertain > nomen dubium, considered a nomen dubium by Smith in Smith & Kroh (2011))
6. Subfamily Stylocidarinae Mortensen, 1903
   1. Genus Acanthocidaris Mortensen, 1903
   2. Genus Plococidaris Mortensen, 1909
   3. Genus Prionocidaris A. Agassiz, 1863
   4. Genus Stylocidaris Mortensen, 1909
7. Subfamily Typocidarinae Vadet, 1988 †
   1. Genus Typocidaris Pomel, 1883 †
8. Genus Abelleicidaris Vadet, 1991 † accepted as Plegiocidaris Pomel, 1883 † (subjective junior synonym)
9. Genus Aulacocidaris Lambert in Savin, 1903 † accepted as Plegiocidaris Pomel, 1883 † (junior subjective synonym)
10. Subfamily Cidarinae Mortensen, 1928 accepted as Cidarinae Gray, 1825 (erroneous authority (see ICZN 1999 Art. 36.1, 50.3))
11. Genus Menocidaris Philip, 1964 † accepted as Chondrocidaris A. Agassiz, 1863 (subjective junior synonym)
12. Genus Minicidaris Deraniyagala, 1961 † (uncertain > nomen dubium, Indeterminate (spine-based taxon))
13. Genus Palmerius Cutress, 1980 † (uncertain > nomen dubium, indeterminate, spine-based taxon)
14. Genus Romanocidaris Vadet, 1991 † (uncertain > nomen dubium, indeterminate, spine-based taxon)

 The webpage text is licensed under a Creative Commons Attribution 4.0 License