Opinions from W. G. Joyce 2017
- 'Aplolidemys gaudryi is recombined as Solemys gaudryi'
- 'Archaeochelys pougeti is a nomen dubium'
- 'Archaeochelys pougeti belongs to Archaeochelys' according to Bergounioux 1938
- 'Australochelys belongs to Testudinata'
- 'Australochelys africanus belongs to Australochelys'
- 'Chelycarapookus is a nomen dubium'
- 'Chelycarapookus arcuatus is a nomen dubium'
- 'Chelytherium is a nomen dubium'
- 'Chelytherium obscurum is a nomen dubium'
- 'Chelyzoon is a nomen dubium'
- 'Chelyzoon blezingeri is a nomen dubium'
- 'Chelyzoon latum is a nomen dubium'
- 'Chinlechelys tenertesta is recombined as Proganochelys tenertesta'
- 'Condorchelys belongs to Mesochelydia'
- 'Condorchelys antiqua belongs to Condorchelys'
- 'Eileanchelys belongs to Mesochelydia'
- 'Eileanchelys waldmani belongs to Eileanchelys'
- 'Emys neumayri is a nomen dubium'
- 'Entoplastrites nuertingensis belongs to Entoplastrites' according to Huene 1956
- 'Heckerochelys belongs to Mesochelydia'
- 'Heckerochelys romani belongs to Heckerochelys'
- 'Helochelydra belongs to Helochelydridae'
- 'Helochelydra nopcsai belongs to Helochelydra'
- 'Helochelydrinae was reranked as the unranked clade Helochelydridae and belongs to Perichelydia'
- 'Helochelys belongs to Helochelydridae'
- 'Helochelys danubina belongs to Helochelys'
- 'Indochelys belongs to Mesochelydia'
- 'Indochelys spatulata belongs to Indochelys'
- 'Kallokibotion belongs to Perichelydia'
- 'Kallokibotion bajazidi belongs to Kallokibotion'
- 'Kallokibotion magnificum is a subjective synonym of Kallokibotion bajazidi'
- 'Kayentachelys belongs to Mesochelydia'
- 'Kayentachelys aprix belongs to Kayentachelys'
- 'Keuperotesta limendorsa is recombined as Proterochersis limendorsa'
- 'Meiolaniformes belongs to Perichelydia'
- 'Mesochelydia belongs to Testudinata'
- 'Mongolochelys belongs to Sichuanchelyidae'
- 'Mongolochelys efremovi belongs to Mongolochelys'
- 'Murrhardtia staeschei is a subjective synonym of Proterochersis robusta'
- 'Naomichelys belongs to Helochelydridae'
- 'Naomichelys speciosa belongs to Naomichelys'
- 'Palaeochersis belongs to Testudinata'
- 'Palaeochersis talampayensis belongs to Palaeochersis'
- 'Perichelydia belongs to Mesochelydia'
- 'Plastremys belongs to Helochelydridae'
- 'Plastremys lata belongs to Plastremys'
- 'Platychelys anglica is recombined as Helochelydra anglica'
- 'Priscochelys hegnabrunnensis is a nomen dubium'
- 'Proganochelys belongs to Testudinata'
- 'Proganochelys quenstedtii belongs to Proganochelys'
- 'Proganochelys ruchae belongs to Proganochelys'
- 'Proterochersis belongs to Testudinata'
- 'Proterochersis intermedia is a subjective synonym of Proterochersis robusta'
- 'Proterochersis porebensis belongs to Proterochersis'
- 'Proterochersis robusta belongs to Proterochersis'
- 'Psammochelys keuperina is an objective synonym of Proganochelys quenstedtii'
- 'Saurischiocomes is a nomen dubium'
- 'Saurischiocomes keuperinus is a nomen dubium'
- 'Saurodesmus is a nomen dubium'
- 'Saurodesmus robertsoni is a nomen dubium'
- 'Sichuanchelyidae was reranked as a unranked clade and belongs to Perichelydia'
- 'Sichuanchelys belongs to Sichuanchelyidae'
- 'Sichuanchelys chowi belongs to Sichuanchelys'
- 'Sichuanchelys palatodentata belongs to Sichuanchelys'
- 'Solemydidae is an objective synonym of Helochelydridae'
- 'Solemys belongs to Helochelydridae'
- 'Solemys vermiculata belongs to Solemys'
- 'Solemys vermiculata belongs to Solemys' according to Lapparent de Broin and Murelaga 1996
- 'Spoochelys belongs to Perichelydia'
- 'Spoochelys ormondea belongs to Spoochelys'
- 'Stegochelys dux is a subjective synonym of Proganochelys quenstedtii'
- 'Thalassodromeus sebesensis is a subjective synonym of Kallokibotion bajazidi'
- 'Trachyaspis turbulensis is a subjective synonym of Plastremys lata'
- 'Trachydermochelys is a nomen nudum'
- 'Trachydermochelys phlyctaenus is a nomen nudum'
- 'Trachydermochelys phlyctaenus is a subjective synonym of Plastremys lata' according to Seeley 1869
- 'Trachydermochelys rutteri is a subjective synonym of Plastremys lata'
- 'Tretosternon punctatum is a nomen dubium'
- 'Trionyx bakewelli is recombined as Helochelydra bakewelli'