Classification of Henderson 1975
G. Paraster Pomel 1869
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Invalid names: Prymnaster Koehler 1914 [synonym], Rotundaster Lambert and Thiery 1925 [synonym]
Fm. Schizasteridae Lambert 1905
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G. †Lambertona Sanchez-Roig 1953
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†Lambertona lyoni Hutton 1873
†Lambertona perdita Henderson 1975
†Lambertona perplexa Henderson 1975
G. †Prenaster Desor 1853
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†Prenaster synapticus Henderson 1975
Invalid names: Protenaster Pomel 1883 [synonym]
G. Schizaster Agassiz 1835
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Invalid names: Aplospatangus Lambert 1907 [synonym], Brachybrissus Pomel 1883 [synonym]
Fm. Spatangidae Gray 1825
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Fm. Brissidae Gray 1855
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G. Eupatagus Agassiz 1847
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†Eupatagus rostratus d'Archiac 1850
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†Eupatagus rostratus zitteli Henderson 1975
Invalid names: Maretia affinis Herklots 1854 [synonym]
Invalid names: Spatangomorpha Boehm 1882 [synonym]
G. Macropneustes Agassiz 1847
G. Meoma Gray 1851
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G. Taimanawa Henderson and Fell 1969
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†Taimanawa greyi Hutton 1873
†Taimanawa prisca Henderson 1975
†Taimanawa rostrata Henderson 1975
Fm. Loveniidae Lambert 1905
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G. Lovenia Desor 1847
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†Lovenia tuberculata Peron and Gauthier 1885
Invalid names: Vasconaster Lambert 1915 [synonym]
Fm. Paleopneustidae Agassiz 1904
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G. Paleopneustes Agassiz 1873 [heart urchin]
G. Pericosmus Agassiz 1847
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†Pericosmus altus Hutton 1873
†Pericosmus annosus Henderson 1975
†Pericosmus borraeus Henderson 1975
†Pericosmus crawfordi Hutton 1873
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Invalid names: Linthia compressus Duncan 1877 [synonym], Meoma brevipatalata Hutton 1873 [synonym], Pericosmus mccoyi Gregory 1890 [synonym]
†Pericosmus scaevus Henderson 1975
Invalid names: Megalaster Duncan 1877 [synonym]