Opinions from E. C. Case 1907

  • 'Archaeobelus belongs to Pelycosauria'
  • 'Archaeobelus vellicatus belongs to Archaeobelus'
  • 'Clepsydropidae belongs to Pelycosauria'
  • 'Clepsydropinae belongs to Clepsydropidae'
  • 'Clepsydrops belongs to Clepsydropinae'
  • 'Clepsydrops collettii belongs to Clepsydrops'
  • 'Clepsydrops leptocephalus is a subjective synonym of Theropleura retroversa'
  • 'Clepsydrops limbatus belongs to Clepsydrops'
  • 'Clepsydrops macrospondylus is recombined as Dimetrodon macrospondylus'
  • 'Clepsydrops natalis belongs to Clepsydrops'
  • 'Clepsydrops pedunculatus belongs to Clepsydrops'
  • 'Clepsydrops vinslovii belongs to Clepsydrops'
  • 'Ctenosaurus belongs to Clepsydropinae'
  • 'Dimetrodon belongs to Clepsydropinae'
  • 'Dimetrodon cruciger is recombined as Naosaurus cruciger'
  • 'Dimetrodon gigashomogenes belongs to Dimetrodon'
  • 'Dimetrodon incisivus belongs to Dimetrodon'
  • 'Dimetrodon navajovicus belongs to Dimetrodon'
  • 'Dimetrodon platycentrus belongs to Dimetrodon'
  • 'Dimetrodon rectiformis belongs to Dimetrodon'
  • 'Dimetrodon semiradicatus belongs to Dimetrodon'
  • 'Edaphosauridae belongs to Pelycosauria'
  • 'Edaphosaurus belongs to Edaphosauridae'
  • 'Edaphosaurus microdus is recombined as Naosaurus microdus'
  • 'Edaphosaurus pogonias belongs to Edaphosaurus'
  • 'Elcabrosaurus belongs to Poliosauridae'
  • 'Elcabrosaurus baldwini belongs to Elcabrosaurus'
  • 'Embolophorus dollovianus is recombined as Dimetrodon dollovianus'
  • 'Geosaurus belongs to Naosaurinae'
  • 'Geosaurus cynodus belongs to Geosaurus' according to Gervais 1869
  • 'Geosaurus cynodus belongs to Geosaurus'
  • 'Naosaurinae belongs to Clepsydropidae'
  • 'Naosaurus belongs to Naosaurinae'
  • 'Pelycosauria belongs to Rhynchocephalia'
  • 'Pleuristion belongs to Pelycosauria'
  • 'Pleuristion brachycoelous belongs to Pleuristion'
  • 'Poliosauridae belongs to Pelycosauria'
  • 'Poliosaurus belongs to Poliosauridae'
  • 'Sphenacodon belongs to Naosaurinae'
  • 'Sphenacodon ferox belongs to Sphenacodon'
  • 'Theropleura belongs to Poliosauridae'
  • 'Theropleura grandis belongs to Theropleura'
  • 'Theropleura obtusidens is recombined as Dimetrodon obtusidens'
  • 'Theropleura retroversa belongs to Theropleura'
  • 'Theropleura triangulata is a subjective synonym of Theropleura retroversa'
  • 'Theropleura uniformis is recombined as Poliosaurus uniformis'
  • 'Varanosaurus belongs to Poliosauridae'
  • 'Varanosaurus acutirostris belongs to Varanosaurus'