Opinions from S. P. Applegate 1970
- 'Acipenseridae belongs to Acipenseriformes'
- 'Acipenseriformes belongs to Chondrostei'
- 'Albula belongs to Albulidae'
- 'Albulidae belongs to Albuloidea'
- 'Albuloidea belongs to Elopoidei'
- 'Amioidei belongs to Amiiformes'
- 'Anacoracidae belongs to Galeiformes'
- 'Anogmius polymicrodus belongs to Anogmius' according to Stewart 1898
- 'Anogmius polymicrodus is recombined as Bananogmius polymicrodus'
- 'Bananogmiidae belongs to Plethodoidea'
- 'Bananogmius belongs to Bananogmiidae'
- 'Bananogmius crieleyi belongs to Bananogmius'
- 'Bananogmius zitteli belongs to Bananogmius' according to Loomis 1900
- 'Bananogmius zitteli belongs to Bananogmius'
- 'Chimaeriformes belongs to Holocephali'
- 'Chimaeroidei belongs to Chimaeriformes'
- 'Chirocentroidea belongs to Clupeoidei'
- 'Chondrostei belongs to Actinopterygii'
- 'Cimolichthys belongs to Enchodontidae'
- 'Clupeidae belongs to Clupeoidea'
- 'Clupeoidea belongs to Clupeoidei'
- 'Corax affinis is recombined as Pseudocorax affinis'
- 'Corax falcatus is recombined as Squalicorax falcatus'
- 'Dercetidae belongs to Myctophoidei'
- 'Dussumieriinae belongs to Clupeidae'
- 'Edaphodon belongs to Edaphodontidae'
- 'Edaphodon mirificus belongs to Edaphodon'
- 'Edaphodontidae belongs to Chimaeroidei'
- 'Elopidae belongs to Elopoidea'
- 'Elopoidea belongs to Elopoidei'
- 'Elopoidei belongs to Teleostei'
- 'Empo nepaholica belongs to Empo' according to Cope 1872
- 'Empo nepaholica is recombined as Cimolichthys nepaholica'
- 'Enchodontidae belongs to Myctophoidei'
- 'Enchodus belongs to Enchodontidae'
- 'Enchodus petrosus belongs to Enchodus'
- 'Enchodus saevus belongs to Enchodus' according to Hay 1903
- 'Enchodus saevus belongs to Enchodus'
- 'Erisichthe nitida is recombined as Protosphyraena nitida'
- 'Galeiformes belongs to Selachii'
- 'Galeus pristodontus is recombined as Squalicorax pristodontus'
- 'Hadrodus belongs to Pycnodontes'
- 'Hadrodus priscus belongs to Hadrodus'
- 'Heterodontiformes belongs to Selachii'
- 'Hoplopteryx belongs to Trachichthyidae'
- 'Hybodontoidei belongs to Heterodontiformes'
- 'Ichthyodectes belongs to Ichthyodectidae'
- 'Ichthyodectes ctenodon belongs to Ichthyodectes' according to Cope 1870
- 'Ichthyodectes ctenodon belongs to Ichthyodectes'
- 'Ichthyodectidae belongs to Chirocentroidea'
- 'Iniomi belongs to Osteichthyes'
- 'Isurus belongs to Lamnidae'
- 'Lamna belongs to Lamnidae'
- 'Lamna (Odontaspis) rhaphiodon is recombined as Scapanorhynchus rhaphiodon'
- 'Lamna appendiculata belongs to Lamna'
- 'Lamna mantellii is recombined as Isurus mantelli'
- 'Lamnidae belongs to Galeiformes'
- 'Moorevillia belongs to Bananogmiidae'
- 'Myctophidae belongs to Myctophoidei'
- 'Myctophoidei belongs to Iniomi'
- 'Pachycormidae belongs to Amioidei'
- 'Pachyrhizodontoidea belongs to Elopoidei'
- 'Pachyrhizodus belongs to Pachyrhizodontoidea'
- 'Pachyrhizodus caninus belongs to Pachyrhizodus'
- 'Pachyrhizodus kingi belongs to Pachyrhizodus'
- 'Pachyrhizodus minimus belongs to Pachyrhizodus'
- 'Palelops eutawensis belongs to Palelops'
- 'Plethodoidea belongs to Elopoidei'
- 'Polygonodon audax is recombined as Xiphactinus audax'
- 'Propenser belongs to Propenserinae'
- 'Propenser hewletti belongs to Propenser'
- 'Propenserinae belongs to Acipenseridae'
- 'Protosphyraena belongs to Pachycormidae'
- 'Pseudocorax belongs to Anacoracidae'
- 'Ptychodontidae belongs to Hybodontoidei'
- 'Ptychodus belongs to Ptychodontidae'
- 'Ptychodus mortoni belongs to Ptychodus'
- 'Ptychodus polygyrus belongs to Ptychodus'
- 'Pycnodontes is corrected as Pycnodontidae and belongs to Pycnodontiformes'
- 'Pycnodontiformes belongs to Holostei'
- 'Saurocephalus belongs to Saurodontidae'
- 'Saurocephalus lanciformis belongs to Saurocephalus' according to Harlan 1834
- 'Saurocephalus lanciformis belongs to Saurocephalus'
- 'Saurodon belongs to Saurodontidae'
- 'Saurodon leanus belongs to Saurodon' according to Hays 1830
- 'Saurodon leanus belongs to Saurodon'
- 'Saurodontidae belongs to Chirocentroidea'
- 'Scapanorhynchus rapax belongs to Scapanorhynchus'
- 'Selachii was reranked as a class and belongs to Vertebrata'
- 'Squalicorax belongs to Anacoracidae'
- 'Stratodus belongs to Dercetidae'
- 'Stratodus apicalis belongs to Stratodus' according to Cope 1872
- 'Stratodus apicalis belongs to Stratodus'
- 'Trachichthyidae belongs to Beryciformes'
- 'Xiphactinus belongs to Ichthyodectidae'