Opinions from M. S. Y. Lee and M. W. Caldwell 2000
- 'Acrodonta belongs to Iguania'
- 'Adriosaurus belongs to Pythonomorpha'
- 'Adriosaurus suessi belongs to Adriosaurus'
- 'Agamidae belongs to Acrodonta'
- 'Agaminae belongs to Agamidae'
- 'Aigialosauridae was reranked as a unranked clade and belongs to Mosasauridae'
- 'Amphisbaenia belongs to Scleroglossa'
- 'Anguidae belongs to Anguimorpha'
- 'Anguimorpha belongs to Scleroglossa'
- 'Aphanizocnemus belongs to Pythonomorpha'
- 'Chamaeleonidae belongs to Acrodonta'
- 'Cordylidae belongs to Scleroglossa'
- 'Dibamidae belongs to Scleroglossa'
- 'Dolichosauridae belongs to Pythonomorpha'
- 'Gekkota belongs to Scleroglossa'
- 'Gymnophthalmidae belongs to Teiioidea'
- 'Heloderma belongs to Varanoidea'
- 'Iguanidae belongs to Iguania'
- 'Lacertidae belongs to Lacertoidea'
- 'Lacertoidea belongs to Scleroglossa'
- 'Lanthanotus belongs to Varanidae'
- 'Mosasauridae belongs to Pythonomorpha'
- 'Ophidia belongs to Pythonomorpha'
- 'Pygopodidae belongs to Gekkota'
- 'Pythonomorpha was reranked as a unranked clade and belongs to Varanoidea'
- 'Scincidae belongs to Scleroglossa'
- 'Scleroglossa belongs to Squamata'
- 'Serpentes was reranked as a unranked clade and belongs to Ophidia'
- 'Shinisaurus belongs to Xenosauridae'
- 'Sineoamphisbaena belongs to Scleroglossa'
- 'Teiidae belongs to Teiioidea'
- 'Teiioidea belongs to Lacertoidea'
- 'Varanidae belongs to Varanoidea'
- 'Varanoidea belongs to Squamata'
- 'Varanus belongs to Varanidae'
- 'Xantusiidae belongs to Scleroglossa'
- 'Xenosauridae belongs to Anguimorpha'