Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Echinacea
Ordines: Arbacioida - Echinoida - Phymosomatoida - Salenioida - Temnopleuroida

Following WoRMS :

• Ordo Arbacioida (Gregory, 1900) -- 1 familia + 2 fossiles
• Ordo Camarodonta (Jackson, 1912)
  • Infra-ordo Echinidea (Kroh & Smith, 2010) -- 5 familiae
  • Infra-ordo Temnopleuridea (Kroh & Smith, 2010) -- 2 familiae + 2 fossiles
• Ordo Stomopneustoida (Kroh & Smith, 2010) -- 2 familiae + 1 fossile
• Familia Glyphopneustidae Smith & Wright, 1993 †

• 
  Arbacia lixula,
  an Arbacioida
• 
  Paracentrotus lividus,
  an Echinidea
• 
  Temnopleurus toreumaticus,
  a Temnopleuridea
• 
  Stomopneustes variolaris,
  a Stomopneustoida