Echinoidea Bothriocidaroida Bothriocidaridae
Cidaroida Archaeocidaridae
Miocidaridae
Cidaridae
Polycidaridae
Psychocidaridae
Diplocidaridae
Echinocystitoida Lepidocentridae
Echinocystitidae
Lepidesthidae
Palaechinoida Palaechinidae
Cravenechinidae
Diadematoida Diadematidae
Lissodiadematidae
Aspidodiadematidae
Pedinoida Pedinidae
Pygasteroida Pygasteroidae
Echinothurioida Echinothuriidae
Salenioida Saleniidae
Acrosaleniidae
Hemicidaroida
Hemicidaridae
Pseudodiadematidae
Phymosomatoida
Stomechinidae
Phymosomatidae
Diplopodiidae
Arbacioida Arbaciidae
Temnopleuroida Glyphocyphidae
Temnopleuridae
Toxopneustidae
Echinoida Echinidae
Echinometridae
Strongylocentrotidae
Parasaleniidae
Plesiocidaroida Tiarechinidae
Orthopsida  Orthopsidae
Holectypoida Holectypidae
Anorthopygidae
Discoididae
Conulidae
Galeritidae
Echinoneidae
Conoclypidae
Oligopygidae
Clypeasteroida Clypeasteridae
Arachnoididae
Fibulariidae
Laganidae
Neolaganidae
Scutellidae
Protoscutellidae
Eoscutellidae
Dendrasteridae
Echinarachniidae
Monophorasteridae
Mellitidae
Astriclypeidae
Scutasteridae
Rotulidae
Cassiduloida Galeropygidae
Clypeidae
Nucleolitidae
Echinolampadidae
Faujasiidae
Archiaciidae
Cassidulidae
Clypeolampadidae
Apatopygidae
Holasteroida Collyritidae
Disasteridae
Holasteridae
Urechinidae
Calymnidae
Pourtalesiidae
Stenonasteridae
Somaliasteridae
Spatangoida
Toxasteridae
Hemiasteridae
Palaeostomatidae
Pericosmidae
Schizasteridae
Aeropsidae
Micrasteridae
Brissidae
Spatangidae
Loveniidae
Asterostomatidae
Neolampadoida Neolampadidae