Opinions from D. A. Russell 1967
- 'Amphekepubis belongs to Mosasaurini'
- 'Amphekepubis johnsoni belongs to Amphekepubis'
- 'Amphorosteus is a nomen vanum'
- 'Amphorosteus brumbyi is a nomen vanum'
- 'Ancylocentrum is a subjective synonym of Prognathodon'
- 'Ancylocentrum hungerfordi is a subjective synonym of Prognathodon rapax'
- 'Baptosaurus is a subjective synonym of Halisaurus'
- 'Baptosaurus onchognathus belongs to Baptosaurus' according to Merriam 1894
- 'Baptosaurus onchognathus is recombined as Halisaurus onchognathus'
- 'Baseodon is a subjective synonym of Mosasaurus'
- 'Mosasaurus reversus is a nomen dubium'
- 'Batrachiosaurus is a subjective synonym of Mosasaurus'
- 'Batrachotherium is a subjective synonym of Mosasaurus'
- 'Bottosaurus belgicus is recombined as Compressidens belgicus'
- 'Brachysaurana is a subjective synonym of Prognathodon'
- 'Brachysaurus is a subjective synonym of Prognathodon'
- 'Brachysaurus overtoni belongs to Brachysaurus' according to Williston 1897
- 'Brachysaurus overtoni is recombined as Ancylocentrum overtoni' according to Schmidt 1927
- 'Brachysaurus overtoni is recombined as Prognathodon overtoni'
- 'Clidastes belongs to Mosasaurini'
- 'Clidastes conodon is recombined as Mosasaurus conodon'
- 'Clidastes iguanavus belongs to Clidastes'
- 'Clidastes liodontus belongs to Clidastes' according to Merriam 1894
- 'Clidastes liodontus belongs to Clidastes'
- 'Clidastes medius is a subjective synonym of Clidastes propython'
- 'Platecarpus planifrons is a nomen vanum'
- 'Clidastes propython belongs to Clidastes'
- 'Clidastes pumilus belongs to Clidastes' according to Marsh 1871
- 'Clidastes pumilus is a subjective synonym of Clidastes propython'
- 'Clidastes sternbergi belongs to Clidastes'
- 'Clidastes westi belongs to Clidastes' according to Williston and Case 1892
- 'Clidastes westi is a subjective synonym of Clidastes propython'
- 'Clidastes wymani belongs to Clidastes' according to Marsh 1871
- 'Clidastes wymani is a subjective synonym of Clidastes propython'
- 'Clidastidae is a subjective synonym of Mosasauridae'
- 'Compressidens belongs to Mosasaurini'
- 'Dollosaurus belongs to Plioplatecarpinae'
- 'Dollosaurus lutugini belongs to Dollosaurus'
- 'Drepanodon is a subjective synonym of Mosasaurus'
- 'Mosasaurus impar is a nomen dubium'
- 'Ectenosaurus belongs to Plioplatecarpini'
- 'Edestosauridae is a subjective synonym of Mosasauridae'
- 'Edestosaurus is a subjective synonym of Clidastes'
- 'Edestosaurus dispar is a subjective synonym of Clidastes propython'
- 'Edestosaurus rex is a subjective synonym of Clidastes propython'
- 'Edestosaurus stenops is a subjective synonym of Clidastes propython'
- 'Edestosaurus tortor is a subjective synonym of Clidastes propython'
- 'Edestosaurus velox is a subjective synonym of Clidastes propython'
- 'Elliptonodon compressus is a nomen dubium'
- 'Garzasaurus is a nomen nudum'
- 'Mosasaurus mitchillii is a nomen vanum'
- 'Globidens belongs to Globidensini'
- 'Globidens alabamensis is corrected as Globidens alabamaensis and belongs to Globidens'
- 'Globidens fraasi is recombined as Compressidens fraasi'
- 'Globidensidae is a subjective synonym of Mosasauridae'
- 'Globidensini belongs to Mosasaurinae'
- 'Hainosaurus belongs to Tylosaurinae'
- 'Hainosaurus bernardi belongs to Hainosaurus'
- 'Hainosaurus lonzeensis belongs to Hainosaurus'
- 'Halisaurus belongs to Plioplatecarpinae'
- 'Halisaurus fraternus is a subjective synonym of Plioplatecarpus depressus'
- 'Holcodus is a subjective synonym of Platecarpus'
- 'Holcodus acutidens is a nomen vanum'
- 'Holcodus coryphaeus is recombined as Platecarpus coryphaeus'
- 'Platecarpus tectulus is a nomen vanum'
- 'Holosaurus is a subjective synonym of Platecarpus'
- 'Holosaurus abruptus is a subjective synonym of Platecarpus coryphaeus'
- 'Ichthyosaurus missouriensis is recombined as Mosasaurus missouriensis'
- 'Kolposaurus bennisoni is recombined as Plotosaurus bennisoni'
- 'Kolposaurus tuckeri is recombined as Plotosaurus tuckeri' according to Camp 1951
- 'Kolposaurus tuckeri is recombined as Plotosaurus tuckeri'
- 'Leiodon is corrected as Liodon and belongs to Mosasaurini'
- 'Leiodon anceps is recombined as Liodon anceps'
- 'Lesticodus is a subjective synonym of Mosasaurus'
- 'Lestosaurus is a subjective synonym of Platecarpus'
- 'Lestosaurus felix is a subjective synonym of Platecarpus ictericus'
- 'Lestosaurus gracilis is a subjective synonym of Platecarpus coryphaeus'
- 'Lestosaurus latifrons is a subjective synonym of Platecarpus ictericus'
- 'Lestosaurus simus is a subjective synonym of Platecarpus ictericus'
- 'Liodon compressidens belongs to Liodon'
- 'Liodon congrops is a nomen vanum'
- 'Liodon crassartus is recombined as Prognathodon crassartus'
- 'Liodon curtirostris is a subjective synonym of Platecarpus ictericus'
- 'Tylosaurus dyspelor is a nomen vanum'
- 'Platecarpus glandiferus is a nomen vanum'
- 'Liodon ictericus is recombined as Platecarpus ictericus'
- 'Liodon mosasauroides belongs to Liodon'
- 'Platecarpus mudgei is a nomen vanum'
- 'Liodon nepaeolicus is recombined as Tylosaurus nepaeolicus' according to Merriam 1894
- 'Liodon nepaeolicus is recombined as Tylosaurus nepaeolicus'
- 'Tylosaurus perlatus is a nomen vanum'
- 'Liodon sectorius belongs to Liodon'
- 'Macrosaurus is a subjective synonym of Mosasaurus'
- 'Mosasaurus laevis is a nomen dubium'
- 'Macrosaurus platyspondylus is recombined as Halisaurus platyspondylus'
- 'Macrosaurus proriger is recombined as Tylosaurus proriger'
- 'Mosasaurini belongs to Mosasaurinae'
- 'Mosasaurus belongs to Mosasaurini'
- 'Mosasaurus caroliniensis is a nomen vanum'
- 'Mosasaurus copeanus is a subjective synonym of Plioplatecarpus depressus'
- 'Mosasaurus couperi is a nomen vanum'
- 'Mosasaurus crassidens is a nomen dubium'
- 'Mosasaurus dekayi belongs to Mosasaurus' according to Bronn 1838
- 'Mosasaurus dekayi belongs to Mosasaurus'
- 'Mosasaurus depressus belongs to Mosasaurus' according to Cope 1869
- 'Mosasaurus depressus is recombined as Plioplatecarpus depressus'
- 'Mosasaurus fulciatus is a subjective synonym of Mosasaurus maximus'
- 'Mosasaurus gaudryi belongs to Mosasaurus'
- 'Mosasaurus hoffmanni ivoensis is recombined as Mosasaurus ivoensis'
- 'Mosasaurus hoffmannii belongs to Mosasaurus'
- 'Mosasaurus lonzeensis belongs to Mosasaurus'
- 'Mosasaurus major belongs to Mosasaurus' according to DeKay 1842
- 'Mosasaurus major is a subjective synonym of Mosasaurus dekayi'
- 'Mosasaurus maximilliani is a subjective synonym of Mosasaurus dekayi'
- 'Mosasaurus maximus belongs to Mosasaurus'
- 'Mosasaurus meirsii is a subjective synonym of Mosasaurus dekayi'
- 'Platecarpus minor is a nomen vanum'
- 'Mosasaurus oarthrus is a subjective synonym of Mosasaurus maximus'
- 'Mosasaurus occidentalis belongs to Mosasaurus' according to Morton 1844
- 'Mosasaurus occidentalis is a nomen dubium'
- 'Mosasaurus princeps is a subjective synonym of Mosasaurus maximus'
- 'Nectoportheus is a subjective synonym of Mosasaurus'
- 'Mosasaurus validus is a nomen dubium'
- 'Oterognathus is a subjective synonym of Plioplatecarpus'
- 'Phosphorosaurus is a subjective synonym of Plioplatecarpus'
- 'Platecarpus belongs to Plioplatecarpini'
- 'Platecarpus affinis is a nomen vanum'
- 'Platecarpus anguliferus is a nomen vanum'
- 'Platecarpus brachycephalus is a nomen dubium'
- 'Platecarpus clidastoides is recombined as Ectenosaurus clidastoides'
- 'Platecarpus latispinus is a nomen dubium'
- 'Platecarpus oxyrhinus is a subjective synonym of Ectenosaurus clidastoides'
- 'Platecarpus somenensis belongs to Platecarpus'
- 'Platecarpus tympaniticus belongs to Platecarpus'
- 'Plesiotylosaurus belongs to Prognathodontini'
- 'Plesiotylosaurus crassidens belongs to Plesiotylosaurus'
- 'Plioplatecarpidae was reranked as the subfamily Plioplatecarpinae and belongs to Mosasauridae'
- 'Plioplatecarpini belongs to Plioplatecarpinae'
- 'Plioplatecarpus belongs to Plioplatecarpini'
- 'Plioplatecarpus houzeaui belongs to Plioplatecarpus'
- 'Plioplatecarpus marshi belongs to Plioplatecarpus'
- 'Plioplatecarpus primaevus belongs to Plioplatecarpus'
- 'Plotosaurini belongs to Mosasaurinae'
- 'Plotosaurus belongs to Plotosaurini'
- 'Prognathodon belongs to Prognathodontini'
- 'Prognathodon giganteus belongs to Prognathodon'
- 'Prognathodon solvayi belongs to Prognathodon'
- 'Prognathodontini belongs to Plioplatecarpidae'
- 'Prognathosaurus is a subjective synonym of Prognathodon'
- 'Pterycollosaurus is a subjective synonym of Mosasaurus'
- 'Rhamphosaurus is replaced by Tylosaurus'
- 'Rhinosaurus is replaced by Tylosaurus'
- 'Rhinosaurus micromus belongs to Rhinosaurus' according to Marsh 1872
- 'Rhinosaurus micromus is a subjective synonym of Tylosaurus proriger'
- 'Sironectes is a subjective synonym of Platecarpus'
- 'Taniwhasaurus belongs to Mosasaurinae'
- 'Taniwhasaurus oweni belongs to Taniwhasaurus'
- 'Tylosaurinae belongs to Mosasauridae'
- 'Tylosaurus belongs to Tylosaurinae'
- 'Tylosaurus rapax is recombined as Prognathodon rapax'