Opinions from H. B. Fell 1966

  • 'Ancylocidaris belongs to Diadematoida'
  • 'Araeosoma belongs to Echinothuriinae'
  • 'Aspidodiademinae was reranked as the family Aspidodiadematidae and belongs to Diadematoida'
  • 'Asthenosoma belongs to Echinothuriinae'
  • 'Atlasaster is a subjective synonym of Pedina'
  • 'Centrostephanus belongs to Diadematidae'
  • 'Diadema belongs to Diadematidae'
  • 'Diadematacea belongs to Euechinoidea'
  • 'Diadematidae belongs to Diadematoida'
  • 'Diadematoida belongs to Diadematacea'
  • 'Diademopsis belongs to Pedinidae'
  • 'Dumblea belongs to Pedinidae'
  • 'Echinopedina belongs to Pedinidae'
  • 'Echinothuria belongs to Echinothuriinae'
  • 'Echinothurideae is corrected as Echinothurioida and belongs to Diadematacea'
  • 'Echinothuriidae belongs to Echinothurioida'
  • 'Echinothuriinae belongs to Echinothuriidae'
  • 'Endeodiadema belongs to Diadematoida'
  • 'Engelia belongs to Diadematoida'
  • 'Eodiadema belongs to Diadematidae'
  • 'Eosalenia belongs to Aspidodiadematidae'
  • 'Farquharsonia belongs to Pedinoida'
  • 'Hebertia is a subjective synonym of Echinopedina'
  • 'Helodiadema belongs to Diadematoida'
  • 'Hemipedina belongs to Pedinidae'
  • 'Heterocidaridae belongs to Diadematacea'
  • 'Heterocidaris belongs to Heterocidaridae'
  • 'Heteropedina belongs to Diadematoida'
  • 'Kierechinus belongs to Diadematidae'
  • 'Leiopedina belongs to Pedinidae'
  • 'Leptocidaris belongs to Pedinoida'
  • 'Loriolipedina belongs to Pedinidae'
  • 'Macrodiadema belongs to Diadematoida'
  • 'Mesodiadema belongs to Diadematidae'
  • 'Micropedina belongs to Pedinidae'
  • 'Miocidaris (Serpianotiaris) was reranked as Serpianotiaris and belongs to Diadematacea'
  • 'Palaeodiadema belongs to Diadematidae'
  • 'Palaeopedina belongs to Pedinidae'
  • 'Pedina belongs to Pedinidae'
  • 'Pediniens was reranked as the family Pedinidae and belongs to Pedinoida'
  • 'Pedinina was reranked as the order Pedinoida and belongs to Diadematacea'
  • 'Pedinothuria belongs to Diadematidae'
  • 'Pelanechinidae was reranked as the subfamily Pelanechininae and belongs to Echinothuriidae'
  • 'Pelanechinus belongs to Pelanechininae'
  • 'Phalacropedina belongs to Pedinidae'
  • 'Phymopedina belongs to Pedinidae'
  • 'Pileus belongs to Pygasteridae'
  • 'Plesiechinus belongs to Pygasteridae'
  • 'Pseudopedina belongs to Pedinidae'
  • 'Pseudorthopsis belongs to Pedinidae'
  • 'Pygaster belongs to Pygasteridae'
  • 'Pygasteridae belongs to Pygasteroida'
  • 'Pygasteroida belongs to Diadematacea'
  • 'Stenechinus belongs to Pedinidae'
  • 'Tiaridia belongs to Aspidodiadematidae'