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Echinoidea [Echinomorpha]
| i. s.: Brissopsis lyrifera [=Brissus lyrifer]
| Paraphormosoma alternans
| Echinarachnius Gray 1825
| `--E. parma
| Leodia sexiesperforata
| Encope michelini
| Tripneustes esculentus
| Loveniidae
| |--Lovenia Desor 1847
| `--Echinocardium Gray 1825
| |--E. austrole
| |--E. cordatum
| |--E. flavescens [incl. Amphidetus ovatus]
| `--E. pennatifidum
| Echinocyamus pusillus
| Psammechinus
| |--P. microtuberculatus [=Parechinus microtuberculatus]
| `--P. miliaris [=Echinus miliaris, Parechinus miliaris]
| Strongylocentrotus Bandt 1835
| |--S. droebachiensis (see below for synonymy)
| |--S. echinoides
| |--S. franciscanus
| |--S. intermedius
| |--S. nudus
| |--S. polyacanthus
| |--S. pulchellus
| `--S. purpuratus (Stimpson 1857)
| Mellita
| |--M. mangrovi
| |--M. quinquiesperforata
| |--M. sexiesperforata
| `--M. tenuis
| Phormosoma
| |--P. bursarium
| |--P. placenta
| `--P. verticillatum
| Conoclypus
| Palaeodiscus ferox
| Diademopsis
| Centrostephanus rodgersii
| Collyrites bicordata (see below for synonymy)
| Acanthotrema
| Glyptocidaris Agassiz 1853 [Glyptocidaridae]
| Schizaster Agassiz 1836 [Schizasteridae]
| `--S. africanus
| Sphaerechinus Desor 1856 [Toxopneustidae]
| `--S. granularis
| Allocentrotus fragilis
| Anthocidaris crassispina
| Brisaster
| |--B. fragilis [=Tripylus fragilis]
| `--B. townsendi
| Echinometra lucunter
| Hemicentrotus pulcherrimus
| Lytechinus
| |--L. anamesus
| `--L. variegatus [=Toxopneustes variegata]
| Dendraster excentricus (Eschscholtz 1831)
| Heliocidaris
| |--H. erythrogramma
| `--H. tuberculata
| Sterechinus neumayeri
| Rhabdocidaris [=Rhabdocrinus (l. c.) non Wright 1944]
| Evechinus chloroticus
| Fellaster zelandiae
| ‘Reophax’ lodderae Goddard & Jensen 1907
| Monostychia australis
| Scutellinoides patellus
|--Euechinoidea [Diadematacea]
| | i. s.: Bursulella Jones 1887
| | `--*B. triangularis Jones 1887
| | Caenopedina Agassiz 1869 [Pedinidae, Pedinoida]
| | Pygasteroida
| | Orthopsida
| |--Echinothurioida
| `--+--Diadema [Diadematoida]
| | |--D. antillarum Philippi 1845
| | `--D. setosum
| `--+--
| `--
`--Perischoechinoidea
|--
|--Bothriocidaroida
|--Palaechinoida
`--Cidaroida
|--Cidaridae
| |--Eucidaris Pomel 1883
| `--*Cidaris cidaris [incl. C. hystrix, Dorocidaris papillata]
`--Archaeocidaris M’Coy 1884 [Archaeocidaridae]
|--A. diadematoides Haude & Thomas 1994
|--A. keyserlingi (Geinitz 1848)
`--A. rossica
Collyrites bicordata [=Cardiopelta bicordata; incl. Co. bicordata var. baltica Beurlen 1934]
Strongylocentrotus droebachiensis [=Echinus droebachiensis, Toxopneustes droebachiensis; incl. E. neglectus, E. pictus]
* Type species of generic name indicated
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