Opinions from O. P. Hay 1908

  • 'Acherontemys belongs to Chelydridae'
  • 'Acherontemys heckmani belongs to Acherontemys'
  • 'Adocus belongs to Dermatemydidae'
  • 'Adocus agilis belongs to Adocus' according to Cope 1868
  • 'Adocus agilis belongs to Adocus'
  • 'Adocus lacer belongs to Adocus'
  • 'Adocus lineolatus belongs to Adocus'
  • 'Adocus petrosus is recombined as Agomphus petrosus'
  • 'Adocus punctatus belongs to Adocus'
  • 'Adocus syntheticus belongs to Adocus'
  • 'Alamosemys belongs to Dermatemydidae'
  • 'Alamosemys substricta belongs to Alamosemys'
  • 'Amblypeza belongs to Bothremydidae'
  • 'Amblypeza antellius belongs to Amblypeza'
  • 'Amblypeza entellus belongs to Amblypeza'
  • 'Amphichelydia was reranked as a superfamily and belongs to Thecophora'
  • 'Amphiemys oxysternum is recombined as Agomphus oxysternum'
  • 'Amyda belongs to Trionychidae'
  • 'Amyda crassa belongs to Amyda'
  • 'Amyda egregia belongs to Amyda'
  • 'Amyda exquisita belongs to Amyda'
  • 'Amyda franciscae belongs to Amyda'
  • 'Amyda mira belongs to Amyda'
  • 'Anosteira belongs to Dermatemydidae'
  • 'Anosteira ornata belongs to Anosteira'
  • 'Anosteira radulina belongs to Anosteira'
  • 'Anostira molopina is recombined as Plastomenus molopinus'
  • 'Anostira oedemia is recombined as Plastomenus oedemius'
  • 'Anostira trionychoides is recombined as Platypeltis trionychoides'
  • 'Aspideretes belongs to Trionychidae'
  • 'Aspideretes austerus belongs to Aspideretes'
  • 'Aspideretes beecheri belongs to Aspideretes'
  • 'Aspideretes ellipticus belongs to Aspideretes'
  • 'Aspideretes fontanus belongs to Aspideretes'
  • 'Aspideretes grangeri belongs to Aspideretes'
  • 'Aspideretes nassau belongs to Aspideretes'
  • 'Aspideretes puercensis belongs to Aspideretes'
  • 'Aspideretes sagatus belongs to Aspideretes'
  • 'Aspideretes splendidus belongs to Aspideretes'
  • 'Aspidonectes tritor belongs to Aspidonectes' according to Hay 1904
  • 'Aspidonectes tritor is recombined as Amyda tritor'
  • 'Athecae belongs to Testudines'
  • 'Atlantochelys mortoni belongs to Atlantochelys'
  • 'Axestemys belongs to Trionychidae'
  • 'Axestus byssinus is recombined as Axestemys byssina'
  • 'Baena belongs to Baenidae'
  • 'Baena affinis is a subjective synonym of Baena arenosa'
  • 'Baena antiqua belongs to Baena'
  • 'Baena arenosa belongs to Baena'
  • 'Baena callosa belongs to Baena'
  • 'Baena cephalica is recombined as Eubaena cephalica'
  • 'Baena clara belongs to Baena'
  • 'Baena emiliae belongs to Baena'
  • 'Baena escavada belongs to Baena'
  • 'Baena hatcheri belongs to Baena'
  • 'Baena hebraica is recombined as Chisternon hebraicum'
  • 'Baena marshi belongs to Baena'
  • 'Baena ponderosa is a subjective synonym of Baptemys wyomingensis'
  • 'Baena pulchra is recombined as Boremys pulchra'
  • 'Baena sima belongs to Baena'
  • 'Baena undata is recombined as Chisternon undatum'
  • 'Baenidae belongs to Amphichelydia'
  • 'Baptemys belongs to Dermatemydidae'
  • 'Baptemys fluviatilis belongs to Baptemys'
  • 'Baptemys tricarinata belongs to Baptemys'
  • 'Basilemys belongs to Dermatemydidae'
  • 'Basilemys sinuosa belongs to Basilemys'
  • 'Boremys belongs to Baenidae'
  • 'Bothremydidae belongs to Pleurodira'
  • 'Bothremys belongs to Pleurodira'
  • 'Bothremys cookii is corrected as Bothremys cooki and belongs to Bothremys'
  • 'Catapleura belongs to Thalassemydidae'
  • 'Catapleura ponderosa belongs to Catapleura'
  • 'Charitemys belongs to Baenidae'
  • 'Charitemys captans belongs to Charitemys'
  • 'Chelone sopita is recombined as Osteopygis sopitus'
  • 'Chelydra belongs to Chelydridae'
  • 'Chelydra crassa is recombined as Hoplochelys crassa'
  • 'Chelydridae belongs to Cryptodira'
  • 'Chisternon belongs to Baenidae'
  • 'Chrysemys inornata is recombined as Graptemys inornata'
  • 'Chrysemys timida belongs to Chrysemys'
  • 'Cistudo eurypygia is recombined as Terrapene eurypygia'
  • 'Cistudo marnochii is recombined as Terrapene marnochi'
  • 'Clemmys morrisiae belongs to Clemmys'
  • 'Compsemys belongs to Dermatemydidae'
  • 'Compsemys imbricarius is recombined as Basilemys imbricaria'
  • 'Compsemys ogmius is a subjective synonym of Basilemys variolosa'
  • 'Compsemys plicatulus is recombined as Glyptops plicatulus'
  • 'Compsemys variolosus is recombined as Basilemys variolosa'
  • 'Conchochelys belongs to Trionychidae'
  • 'Conchochelys admirabilis belongs to Conchochelys' according to Hay 1905
  • 'Conchochelys admirabilis belongs to Conchochelys'
  • 'Cryptodira was reranked as a superfamily and belongs to Thecophora'
  • 'Cynocercus belongs to Toxochelyidae'
  • 'Deirochelys floridana belongs to Deirochelys'
  • 'Dermatemydidae belongs to Cryptodira'
  • 'Dermatemys costilata is recombined as Kallistira costilata'
  • 'Desmatochelys lowii [misspelled as Desmatochelys lowi] belongs to Desmatochelys'
  • 'Echmatemys aegle belongs to Echmatemys'
  • 'Echmatemys arethusa belongs to Echmatemys'
  • 'Echmatemys callopyge belongs to Echmatemys'
  • 'Echmatemys cyane belongs to Echmatemys'
  • 'Echmatemys naomi belongs to Echmatemys'
  • 'Echmatemys ocyrrhoe belongs to Echmatemys'
  • 'Echmatemys pusilla belongs to Echmatemys'
  • 'Echmatemys uintensis belongs to Echmatemys'
  • 'Emys beatus is recombined as Adocus beatus'
  • 'Emys firmus is recombined as Agomphus firmus'
  • 'Emys megaulax is recombined as Echmatemys megaulax'
  • 'Emys obscurus is recombined as Compsemys obscura'
  • 'Emys pravus is recombined as Adocus pravus'
  • 'Emys septarius is recombined as Echmatemys septaria'
  • 'Emys turgidus is recombined as Agomphus turgidus'
  • 'Emys wyomingensis belongs to Emys'
  • 'Erquelinnesia belongs to Thalassemydidae'
  • 'Erquelinnesia molaria belongs to Erquelinnesia'
  • 'Eubaena belongs to Baenidae'
  • 'Eubaena latifrons belongs to Eubaena'
  • 'Euclastes platyops is recombined as Rhetechelys platyops'
  • 'Glyptops belongs to Pleurosternidae'
  • 'Glyptops caelatus belongs to Glyptops'
  • 'Glyptops depressus belongs to Glyptops'
  • 'Glyptops ornatus is a subjective synonym of Glyptops plicatulus'
  • 'Glyptops pervicax belongs to Glyptops'
  • 'Hadrianus allabiatus is recombined as Achilemys allabiata'
  • 'Hadrianus tumidus belongs to Hadrianus'
  • 'Helopanoplia distincta belongs to Helopanoplia'
  • 'Homorophus belongs to Dermatemydidae'
  • 'Homorophus insuetus belongs to Homorophus' according to Cope 1870
  • 'Homorophus insuetus belongs to Homorophus'
  • 'Hoplochelys belongs to Dermatemydidae'
  • 'Hoplochelys bicarinata belongs to Hoplochelys'
  • 'Hoplochelys paludosa belongs to Hoplochelys'
  • 'Hoplochelys saliens belongs to Hoplochelys'
  • 'Kallistira belongs to Dermatemydidae'
  • 'Lytoloma belongs to Thalassemydidae'
  • 'Lytoloma angusta belongs to Lytoloma'
  • 'Lytoloma jeanesii [misspelled as Lytoloma jeanesi] belongs to Lytoloma'
  • 'Lytoloma wielandi belongs to Lytoloma'
  • 'Macrochelys belongs to Chelydridae'
  • 'Macrochelys floridana belongs to Macrochelys'
  • 'Naiadochelys belongs to Bothremydidae'
  • 'Naiadochelys ingravata belongs to Naiadochelys'
  • 'Naomichelys belongs to Baenidae'
  • 'Naomichelys speciosa belongs to Naomichelys'
  • 'Neurankylus belongs to Baenidae'
  • 'Neurankylus eximius belongs to Neurankylus'
  • 'Notomorpha belongs to Dermatemydidae'
  • 'Notomorpha garmanii is a subjective synonym of Notomorpha gravis'
  • 'Notomorpha gravis belongs to Notomorpha'
  • 'Notomorpha testudinea is recombined as Echmatemys testudinea'
  • 'Osteopygis belongs to Thalassemydidae'
  • 'Osteopygis chelydrinus belongs to Osteopygis'
  • 'Osteopygis emarginatus belongs to Osteopygis'
  • 'Osteopygis erosus belongs to Osteopygis'
  • 'Osteopygis gibbi belongs to Osteopygis'
  • 'Osteopygis platylomus belongs to Osteopygis'
  • 'Osteopygis repandus is recombined as Catapleura repanda'
  • 'Osteopygis robustus belongs to Osteopygis'
  • 'Plastomenidae belongs to Trionychoidea'
  • 'Plastomenus belongs to Plastomenidae'
  • 'Plastomenus acupictus belongs to Plastomenus'
  • 'Plastomenus catenatus belongs to Plastomenus'
  • 'Plastomenus coalescens belongs to Plastomenus' according to Cope 1875
  • 'Plastomenus coalescens is recombined as Aspideretes coalescens'
  • 'Plastomenus communis belongs to Plastomenus'
  • 'Plastomenus corrugatus belongs to Plastomenus'
  • 'Plastomenus costatus belongs to Plastomenus'
  • 'Plastomenus fractus belongs to Plastomenus'
  • 'Plastomenus lachrymalis belongs to Plastomenus' according to Cope 1874
  • 'Plastomenus lachrymalis belongs to Plastomenus'
  • 'Plastomenus multifoveatus is a subjective synonym of Plastomenus thomasi'
  • 'Plastomenus punctulatus belongs to Plastomenus'
  • 'Plastomenus serialis is recombined as Platypeltis serialis'
  • 'Plastomenus tantillus belongs to Plastomenus'
  • 'Plastomenus visendus belongs to Plastomenus'
  • 'Platecarpus tuberosus is recombined as Neptunochelys tuberosa'
  • 'Platemys sulcatus is recombined as Taphrosphys sulcatus'
  • 'Platypeltis belongs to Trionychidae'
  • 'Platypeltis amnicola belongs to Platypeltis'
  • 'Platypeltis antiqua belongs to Platypeltis'
  • 'Platypeltis extensa belongs to Platypeltis'
  • 'Platypeltis postera belongs to Platypeltis'
  • 'Platypeltis trepida belongs to Platypeltis'
  • 'Plesiochelys belviderensis belongs to Plesiochelys' according to Cragin 1902
  • 'Plesiochelys belviderensis is recombined as Glyptops belviderensis'
  • 'Pleurodira was reranked as a superfamily and belongs to Thecophora'
  • 'Pleurosternidae belongs to Amphichelydia'
  • 'Pleurosternum pectorale is recombined as Agomphus pectoralis'
  • 'Polythorax belongs to Baenidae'
  • 'Polythorax missuriensis belongs to Polythorax'
  • 'Porthochelys browni belongs to Porthochelys'
  • 'Porthochelys laticeps belongs to Porthochelys'
  • 'Probaena belongs to Baenidae'
  • 'Probaena sculpta belongs to Probaena' according to Hay 1903
  • 'Prochonias is an objective synonym of Taphrosphys'
  • 'Propleura borealis is recombined as Osteopygis borealis'
  • 'Protostega advena belongs to Protostega'
  • 'Protostega gigas belongs to Protostega'
  • 'Protostega neptunia is an objective synonym of Atlantochelys mortoni'
  • 'Protostega potens belongs to Protostega'
  • 'Pseudemys caelata belongs to Pseudemys'
  • 'Pseudemys extincta belongs to Pseudemys'
  • 'Rhetechelys belongs to Thalassemydidae'
  • 'Stylemys belongs to Testudinidae'
  • 'Stylemys capax belongs to Stylemys'
  • 'Stylemys conspecta belongs to Stylemys'
  • 'Stylemys nebrascensis belongs to Stylemys'
  • 'Taphrosphys belongs to Bothremydidae'
  • 'Taphrosphys dares belongs to Taphrosphys'
  • 'Taphrosphys leslianus belongs to Taphrosphys'
  • 'Taphrosphys longinuchus belongs to Taphrosphys'
  • 'Taphrosphys molops belongs to Taphrosphys'
  • 'Taphrosphys nodosus belongs to Taphrosphys'
  • 'Taphrosphys strenuus belongs to Taphrosphys'
  • 'Temnotrionyx belongs to Trionychidae'
  • 'Temnotrionyx manducans belongs to Temnotrionyx'
  • 'Terrapene putnami is recombined as Testudo carolina putnami'
  • 'Testudo campester belongs to Testudo'
  • 'Testudo carolina longinsulae belongs to Testudo carolina'
  • 'Testudo emiliae belongs to Testudo'
  • 'Testudo farri belongs to Testudo'
  • 'Testudo impensa belongs to Testudo'
  • 'Testudo inusitata belongs to Testudo'
  • 'Testudo pansa belongs to Testudo'
  • 'Testudo serpentina is recombined as Chelydra serpentina'
  • 'Testudo thomsoni belongs to Testudo'
  • 'Testudo vaga belongs to Testudo'
  • 'Thalassemydidae belongs to Cryptodira'
  • 'Thecophora belongs to Testudines'
  • 'Thescelus belongs to Baenidae'
  • 'Thescelus insiliens belongs to Thescelus'
  • 'Thescelus rapiens belongs to Thescelus'
  • 'Terrapene anguillulatus is a subjective synonym of Terrapene eurypygia'
  • 'Toxochelyidae belongs to Cryptodira'
  • 'Toxochelys belongs to Toxochelyidae'
  • 'Toxochelys brachyrhinus is corrected as Toxochelys brachyrhina and belongs to Toxochelys'
  • 'Toxochelys elkader belongs to Toxochelys'
  • 'Toxochelys latiremis belongs to Toxochelys'
  • 'Toxochelys procax belongs to Toxochelys'
  • 'Trachemys jarmani belongs to Trachemys'
  • 'Trachemys sculpta belongs to Trachemys'
  • 'Trachemys trulla belongs to Trachemys'
  • 'Trionychidae belongs to Trionychoidea'
  • 'Trionyx buiei is recombined as Amyda buiei'
  • 'Trionyx cariosus is recombined as Amyda cariosa'
  • 'Trionyx cellulosus is recombined as Amyda cellulosa'
  • 'Trionyx concentricus is recombined as Amyda concentrica'
  • 'Trionyx ferox belongs to Trionyx' according to Schneider 1783
  • 'Trionyx ferox is recombined as Platypeltis ferox'
  • 'Trionyx foveatus is recombined as Aspideretes foveatus'
  • 'Trionyx guttatus is recombined as Aspideretes guttatus'
  • 'Trionyx halophilus is recombined as Amyda halophila'
  • 'Trionyx heteroglyptus is recombined as Platypeltis heteroglypta'
  • 'Trionyx leptomitus is recombined as Plastomenus leptomitus'
  • 'Trionyx leucopotamicus is recombined as Platypeltis leucopotamica'
  • 'Trionyx lima is recombined as Amyda lima'
  • 'Trionyx pennatus belongs to Trionyx' according to Cope 1869
  • 'Trionyx pennatus is recombined as Amyda pennata'
  • 'Trionyx priscus is recombined as Amyda prisca'
  • 'Trionyx radulus is recombined as Amyda radula'
  • 'Trionyx thomasii is recombined as Plastomenus thomasi'
  • 'Trionyx uintaensis belongs to Trionyx' according to Leidy 1872
  • 'Trionyx uintaensis is recombined as Amyda uintaensis'
  • 'Trionyx vagans is recombined as Aspideretes vagans'
  • 'Trionyx ventricosus is recombined as Amyda ventricosa'
  • 'Trionyx virginianus belongs to Trionyx' according to Clark 1895
  • 'Trionyx virginianus is recombined as Amyda virginiana'
  • 'Xenochelys belongs to Dermatemydidae'
  • 'Xenochelys formosa belongs to Xenochelys'
  • 'Zygoramma belongs to Dermatemydidae'
  • 'Zygoramma microglypha belongs to Zygoramma' according to Cope 1871
  • 'Zygoramma microglypha belongs to Zygoramma'
  • 'Zygoramma striatula belongs to Zygoramma'