Classification of Webster et al. 2009

Ph. Echinodermata Klein 1754
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Subph. †Echinozoa von Zittel 1895
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Cl. Echinoidea Leske 1778 [sea urchin]
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Subcl. †Perischoechinoidea M'Coy 1849
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Or. Cidaroida Claus 1880 [pencil urchin]
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Fm. †Archaeocidaridae M'Coy 1844
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G. †Archaeocidaris M'Coy 1844
Cl. †Blastoidea Say 1825 [blastoid]
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Or. †Troosticrinida Bather 1900
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Fm. †Troosticrinidae Bather 1899
Cl. Crinoidea Miller 1821 [Sea lily]
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Subcl. †Camerata Wachsmuth and Springer 1885
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Or. †Monobathrida Moore and Laudon 1943
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Subor. †Glyptocrinina Moore 1952
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Superfm. †Platycrinitoidea Austin and Austin 1843
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Fm. †Platycrinitidae Bassler 1938
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G. †Platycrinites Miller 1821
Or. Cladida Moore and Laudon 1943
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Or. †Dendrocrinida Bather 1899
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Superfm. †Cromyocrinoidea Bather 1890
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Fm. †Cromyocrinidae Bather 1890
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G. †Dicromyocrinus Jaekel 1918
Superfm. †Lophocrinoidea Bather 1899
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Fm. †Stellarocrinidae Strimple 1961
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G. †Stellarocrinus Strimple 1940
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†Stellarocrinus qijiagouensis Webster et al. 2009
Superfm. †Pirasocrinoidea Moore and Laudon 1943
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Fm. †Pirasocrinidae Moore and Laudon 1943
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G. †Metaperimestocrinus Strimple 1961
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†Metaperimestocrinus aoertuensis Webster et al. 2009
Superfm. †Scytalocrinoidea Moore and Laudon 1943
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Fm. †Blothrocrinidae Moore and Laudon 1943
Subcl. †Disparida Moore and Laudon 1943
Subcl. †Flexibilia Zittel 1895
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Or. †Sagenocrinida Springer 1913
Superfm. †Sagenocrinoidea Bassler 1938
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Fm. †Dactylocrinidae Bather 1899
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Subcl. †Disparida Moore and Laudon 1943
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Superfm. †Belemnocrinoidea Miller 1883
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Fm. †Synbathocrinidae Miller 1889
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G. †Synbathocrinus Phillips 1836
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†Synbathocrinus labrus Webster et al. 2009