Opinions from J. Leidy 1869

  • 'Agriochoerus belongs to Agriochoeridae'
  • 'Anchippus belongs to Anchitheridae'
  • 'Anchitheridae belongs to Solidungula'
  • 'Anchitherium belongs to Anchitheridae'
  • 'Anchitherium (Hypohippus) was reranked as Hypohippus and belongs to Anchitheridae'
  • 'Anchitherium (Hypohippus) affinis is recombined as Hypohippus affinis'
  • 'Anchitherium (Parahippus) was reranked as Parahippus and belongs to Anchitheridae'
  • 'Anchitherium (Parahippus) cognatus is recombined as Parahippus cognatus'
  • 'Anoplonassa forcipata belongs to Anoplonassa'
  • 'Balaena palaeatlantica is recombined as Protobalaena palaeatlantica'
  • 'Balaena prisca is recombined as Eschrichtius priscus'
  • 'Balaenoptera pusilla is recombined as Eschrichtius pusillus'
  • 'Canis indianensis belongs to Canis'
  • 'Catodon vetus belongs to Catodon'
  • 'Cetophis heteroclitus belongs to Cetophis'
  • 'Colophonodon holmesii is recombined as Squalodon holmesii'
  • 'Cynorca proterva is recombined as Squalodon protervus'
  • 'Delphinapterus gabbii is recombined as Tretosphys gabbii'
  • 'Delphinapterus lacertosus is recombined as Tretosphys lacertosus'
  • 'Delphinapterus ruschenbergeri is recombined as Tretosphys ruschenbergeri'
  • 'Delphinus calvertensis is recombined as Lophocetus calvertensis'
  • 'Delphinus conradi is recombined as Priscodelphinus conradi'
  • 'Delphinus occiduus belongs to Delphinus'
  • 'Dorudon serratus belongs to Dorudon'
  • 'Equus (Protohippus) was reranked as Protohippus and belongs to Equidae'
  • 'Eschrichtius cephalus belongs to Eschrichtius'
  • 'Eschrichtius leptocentrus belongs to Eschrichtius'
  • 'Hemicaulodon effodiens belongs to Hemicaulodon'
  • 'Hipparion affine belongs to Hipparion'
  • 'Hipparion gratum belongs to Hipparion'
  • 'Homocamelus belongs to Camelidae'
  • 'Homocamelus caninus belongs to Homocamelus'
  • 'Hoplocetus obesus belongs to Hoplocetus'
  • 'Ixacanthus coelospondylus belongs to Ixacanthus'
  • 'Macrophoca atlantica is recombined as Squalodon atlanticus'
  • 'Manatus antiquus is recombined as Ischyrotherium antiquus'
  • 'Megaptera expansa is recombined as Eschrichtius expansus'
  • 'Ontocetus emmonsi belongs to Ontocetus'
  • 'Oreodontidae belongs to Ruminantia'
  • 'Orycterocetus crocodilinus is a subjective synonym of Orycterocetus cornutidens'
  • 'Orycterocetus quadratidens belongs to Orycterocetus'
  • 'Phoca debilis is recombined as Squalodon debilis'
  • 'Phoca modesta belongs to Phoca'
  • 'Phoca wymani belongs to Phoca'
  • 'Phocageneus venustus belongs to Phocageneus'
  • 'Phocodon holmesii belongs to Phocodon' according to Agassiz 1850
  • 'Phocodon holmesii is an objective synonym of Squalodon pygmaeus'
  • 'Physeter antiquus is replaced by Catodon vetus'
  • 'Priscodelphinus acutidens belongs to Priscodelphinus'
  • 'Priscodelphinus atropius belongs to Priscodelphinus'
  • 'Priscodelphinus grandaevus is recombined as Tretosphys grandaevus'
  • 'Priscodelphinus harlani belongs to Priscodelphinus'
  • 'Priscodelphinus spinosus belongs to Priscodelphinus'
  • 'Priscodelphinus stenus belongs to Priscodelphinus'
  • 'Protobalaena belongs to Balaenidae'
  • 'Protohippus placidus belongs to Protohippus'
  • 'Rhabdosteus latiradix belongs to Rhabdosteus'
  • 'Saurocetus gibbesii belongs to Saurocetus'
  • 'Squalodon mento is recombined as Delphinodon mento'
  • 'Squalodon pelagius belongs to Squalodon'
  • 'Squalodon wymanii is recombined as Delphinodon wymani'
  • 'Stenorhynchus vetus is recombined as Lobodon vetus'
  • 'Stylemys belongs to Chelonia'
  • 'Tretosphys uraeus belongs to Tretosphys'
  • 'Trichechus virginianus belongs to Trichechus' according to Dekay 1842
  • 'Zarhachis flagellator belongs to Zarhachis'
  • 'Zarhachis tysonii belongs to Zarhachis'
  • 'Zarhachis velox belongs to Zarhachis'
  • 'Zeuglodon cetoides is recombined as Basilosaurus cetoides'
  • 'Zeuglodon pygmaeus is recombined as Squalodon pygmaeus'