Opinions from W. D. Matthew 1918

  • 'Aelurodon hyaenoides is recombined as Brachypsalis hyaenoides'
  • 'Amblycastor belongs to Eutypomyidae'
  • 'Amblycastor fluminis belongs to Amblycastor'
  • 'Amphicyon amnicola is recombined as Pliocyon amnicola'
  • 'Aphelops fossiger is recombined as Teleoceras fossiger'
  • 'Aphelops fossiger is recombined as Teleoceras fossiger' according to Osborn 1898
  • 'Aphelops planiceps is recombined as Teleoceras planiceps'
  • 'Borocyon is a nomen dubium'
  • 'Borocyon robustum is a nomen dubium'
  • 'Borophagus is a nomen dubium'
  • 'Borophagus diversidens is a nomen dubium'
  • 'Brachypsalis modicus belongs to Brachypsalis'
  • 'Canis gregarius is recombined as Pseudocynodictis gregarius'
  • 'Canis gregarius is recombined as Pseudocynodictis gregarius' according to Schlosser 1902
  • 'Canis gregarius is recombined as Cynodictis gregarius' according to Schlaikjer 1935
  • 'Canis vafer is recombined as Leptocyon vafer'
  • 'Canis vafer is recombined as Vulpes vafer' according to Macdonald 1948
  • 'Cervavus sinclairi belongs to Cervavus'
  • 'Cranioceras belongs to Dromomerycidae'
  • 'Cranioceras unicornis belongs to Cranioceras'
  • 'Dibelodon is a subjective synonym of Gompotherium'
  • 'Dibelodon belongs to ' according to Cope 1884
  • 'Hesperocyon belongs to Canidae' according to Scott 1890
  • 'Hesperocyon is a nomen nudum'
  • 'Hypohippus pertinax belongs to Hypohippus'
  • 'Leptocyon belongs to Canidae'
  • 'Mastodon (Tetralophodon) mirificus is recombined as Stegomastodon mirificus'
  • 'Mastodon (Tetralophodon) mirificus is recombined as Stegomastodon mirificus' according to Pohlig 1912
  • 'Mastodon brevidens is recombined as Zygolophodon brevidens'
  • 'Mastodon brevidens belongs to Mastodon' according to Cope 1889
  • 'Mastodon serridens is recombined as Zygolophodon serridens'
  • 'Mastodon serridens belongs to Mastodon' according to Cope 1884
  • 'Mastodon shepardii is a nomen dubium'
  • 'Merychyus (Metoreodon) was reranked as Metoreodon and belongs to Oreodontidae'
  • 'Peraceras superciliosus belongs to Peraceras'
  • 'Peraceras troxelli belongs to Peraceras'
  • 'Pliocyon belongs to Amphicyonidae'
  • 'Pliocyon medius belongs to Pliocyon'
  • 'Proamphicyon is a subjective synonym of Daphoenus'
  • 'Proamphicyon belongs to ' according to Hatcher 1902
  • 'Promastodon is a nomen nudum'
  • 'Promastodon belongs to ' according to Pohlig 1912
  • 'Rhabdobunus is a subjective synonym of Stegomastodon'
  • 'Rhinoceros crassus is recombined as Aphelops crassus'
  • 'Rhinoceros crassus is recombined as Aphelops crassus' according to Osborn 1890
  • 'Rhinoceros meridianus is recombined as Aphelops meridianus'
  • 'Rhinoceros meridianus is recombined as Aphelops meridianus' according to Dumble 1894
  • 'Tephrocyon confertus belongs to Tephrocyon'
  • 'Tetrabelodon is a subjective synonym of Gomphotherium'
  • 'Tetrabelodon belongs to ' according to Cope 1884
  • 'Trilophodon is a subjective synonym of Gomphotherium'
  • 'Trilophodon belongs to ' according to Falconer 1857