Opinions from W. G. Joyce et al. 2004
- 'Adocus belongs to Trionychia'
- 'Agomphus belongs to Trionychoidea'
- 'Araripemys belongs to Pelomedusoides'
- 'Aspideretoides belongs to Trionychidae'
- 'Australochelys belongs to Testudines'
- 'Baenidae belongs to Cryptodira'
- 'Baltemys belongs to Kinosternidae'
- 'Baptemys belongs to Dermatemydidae'
- 'Basilemys belongs to Trionychia'
- 'Bataguridae belongs to Testudinoidea'
- 'Bothremydidae belongs to Pelomedusoides'
- 'Brasilemys belongs to Podocnemidae'
- 'Carettochelyidae belongs to Trionychia'
- 'Caribemys belongs to Pleurodira'
- 'Cearachelys belongs to Podocnemidae'
- 'Chelidae belongs to Pleurodira'
- 'Cheloniidae belongs to Chelonioidea'
- 'Chelonioidea belongs to Cryptodira'
- 'Chelydridae belongs to Cryptodira'
- 'Cryptoderinea belongs to Cryptodira'
- 'Cryptodira belongs to Testudines'
- 'Ctenochelys belongs to Cheloniidae'
- 'Dermatemydidae belongs to Kinosternoidea'
- 'Dermochelyidae belongs to Chelonioidea'
- 'Emydidae belongs to Panemydidae'
- 'Eosphargis belongs to Dermochelyidae'
- 'Euclastes belongs to Cheloniidae'
- 'Gopherus belongs to Testudinidae'
- 'Hadrianus belongs to Testudinidae'
- 'Hoplochelys belongs to Kinosternoidea'
- 'Kayentachelys belongs to Cryptodira'
- 'Kinosternoidea [misspelled as Kinosternidae] belongs to Kinosternoidea'
- 'Kinosternoidea was reranked as a unranked clade and belongs to Trionychoidea'
- 'Kizylkumemys belongs to Carettochelyidae'
- 'Lindholmemys belongs to Testudinoidea'
- 'Macrobaenidae belongs to Cryptodira'
- 'Meiolaniidae [misspelled as Meiolanidae] belongs to Cryptodira'
- 'Mongolemys belongs to Testudinoidea'
- 'Nanhsiungchelys belongs to Trionychia'
- 'Notoemys belongs to Pleurodira'
- 'Palaeochersis belongs to Testudines'
- 'Panemydidae belongs to Testudinoidea'
- 'Pantestudines belongs to Reptilia'
- 'Pantestudinidae belongs to Testudinoidea'
- 'Pantestudinoidea belongs to Cryptodira'
- 'Pelomedusidae belongs to Pelomedusoides'
- 'Pelomedusoides belongs to Pleurodira'
- 'Peltochelys belongs to Trionychia'
- 'Platychelys belongs to Pleurodira'
- 'Platysternidae belongs to Cryptoderinea'
- 'Platysternon belongs to Platysternidae'
- 'Plesiochelydiae belongs to Cryptodira'
- 'Pleurodira belongs to Testudines'
- 'Pleurosternidae belongs to Cryptodira'
- 'Podocnemididae [misspelled as Podocnemidae] belongs to Pelomedusoides'
- 'Procolpochelys belongs to Cheloniidae'
- 'Proganochelys belongs to Testudines'
- 'Proterochersis belongs to Testudines'
- 'Protostegidae belongs to Chelonioidea'
- 'Psephophorus belongs to Dermochelyidae'
- 'Puppigerus belongs to Cheloniidae'
- 'Sandownia belongs to Trionychia'
- 'Santanachelys belongs to Dermochelyidae'
- 'Sinemydidae belongs to Cryptodira'
- 'Stylemys belongs to Testudinidae'
- 'Teneremys belongs to Pelomedusidae'
- 'Testudinata was reranked as a subclass and belongs to Pantestudines'
- 'Testudinidae belongs to Pantestudinidae'
- 'Testudinoidea belongs to Cryptoderinea'
- 'Toxochelys belongs to Cheloniidae'
- 'Trionychia was reranked as a unranked clade and belongs to Trionychoidea'
- 'Trionychidae belongs to Trionychia'
- 'Trionychoidea belongs to Cryptodira'
- 'Xenochelys belongs to Kinosternidae'