Opinions from G. D. Webster et al. 2009
- 'Aexitrophocrinus belongs to Dactylocrinidae'
- 'Archaeocidaridae belongs to Cidaroida'
- 'Archaeocidaris belongs to Archaeocidaridae'
- 'Belemnocrinoidea belongs to Disparida'
- 'Blothrocrinidae belongs to Scytalocrinoidea'
- 'Camerata belongs to Crinoidea'
- 'Cidaridae is corrected as Cidaroida and belongs to Perischoechinoidea'
- 'Cladida was reranked as a order and belongs to Crinoidea'
- 'Cromyocrinidae belongs to Cromyocrinoidea'
- 'Cromyocrinoidea belongs to Dendrocrinida'
- 'Dactylocrinidae belongs to Sagenocrinoidea'
- 'Dendrocrinida belongs to Cladida'
- 'Dicromyocrinus belongs to Cromyocrinidae'
- 'Disparida was reranked as a subclass and belongs to Crinoidea'
- 'Echinozoa belongs to Echinodermata'
- 'Echinus was reranked as the class Echinoidea and belongs to Echinozoa'
- 'Flexibilia belongs to Crinoidea'
- 'Glyptocrinina belongs to Monobathrida'
- 'Lophocrinoidea belongs to Dendrocrinida'
- 'Metaperimestocrinus belongs to Pirasocrinidae'
- 'Metaperimestocrinus aoertuensis belongs to Metaperimestocrinus'
- 'Monobathrida belongs to Camerata'
- 'Perischoechinida was reranked as the subclass Perischoechinoidea and belongs to Echinoidea'
- 'Pirasocrinidae belongs to Pirasocrinoidea'
- 'Pirasocrinoidea belongs to Dendrocrinida'
- 'Platycrinites belongs to Platycrinitidae'
- 'Platycrinitidae belongs to Platycrinitoidea'
- 'Platycrinitoidea belongs to Glyptocrinina'
- 'Sagenocrinida belongs to Flexibilia'
- 'Sagenocrinoidea belongs to Flexibilia'
- 'Scytalocrinoidea belongs to Dendrocrinida'
- 'Stellarocrinidae belongs to Lophocrinoidea'
- 'Stellarocrinus belongs to Stellarocrinidae'
- 'Stellarocrinus qijiagouensis belongs to Stellarocrinus'
- 'Synbathocrinidae belongs to Belemnocrinoidea'
- 'Synbathocrinus belongs to Synbathocrinidae'
- 'Synbathocrinus labrus belongs to Synbathocrinus'
- 'Troosticrinida belongs to Blastoidea'
- 'Troosticrinidae belongs to Troosticrinida'