Opinions from D. R. Prothero 2005

  • 'Aceratheriinae belongs to Rhinocerotidae'
  • 'Aceratherium acutum is a subjective synonym of Teleoceras fossiger'
  • 'Aceratherium copei is a subjective synonym of Subhyracodon mitis'
  • 'Aceratherium exiguum is a subjective synonym of Subhyracodon occidentalis'
  • 'Aceratherium megalodum is recombined as Aphelops megalodus'
  • 'Aceratherium mite is recombined as Subhyracodon mitis'
  • 'Aceratherium persistens belongs to Aceratherium' according to H. F. Osborn 1904
  • 'Aceratherium persistens is a nomen dubium'
  • 'Aceratherium platycephalum is recombined as Amphicaenopus platycephalus'
  • 'Aceratherium profectum is recombined as Peraceras profectum'
  • 'Aceratherium stigeri is a subjective synonym of Menoceras arikarense'
  • 'Aceratherium tridactylum is recombined as Diceratherium tridactylum'
  • 'Aceratherium trigonodum is a subjective synonym of Subhyracodon occidentalis'
  • 'Aceratherium truquianum belongs to Aceratherium' according to E. D. Cope 1879
  • 'Aceratherium truquianum is a subjective synonym of Diceratherium armatum'
  • 'Amphicaenopus belongs to Rhinocerotidae'
  • 'Anchisodon is a subjective synonym of Subhyracodon'
  • 'Anchisodon tubifer belongs to Anchisodon' according to E. D. Cope 1879
  • 'Anchisodon tubifer is a nomen dubium'
  • 'Aphelops belongs to Aceratheriinae'
  • 'Aphelops brachyodus is a subjective synonym of Peraceras profectum'
  • 'Aphelops ceratorhinus is a subjective synonym of Peraceras profectum'
  • 'Aphelops fossiger is recombined as Teleoceras fossiger'
  • 'Aphelops jemezanus is a nomen dubium'
  • 'Aphelops kimballensis is a subjective synonym of Aphelops mutilus'
  • 'Aphelops longinaris is a subjective synonym of Aphelops mutilus'
  • 'Aphelops malacorhinus belongs to Aphelops'
  • 'Aphelops montanus is a subjective synonym of Peraceras profectum'
  • 'Aphelops mutilus belongs to Aphelops'
  • 'Aphelops planiceps is a subjective synonym of Teleoceras medicornutum'
  • 'Brachypotherium americanum is recombined as Teleoceras americanum'
  • 'Caenopus dakotensis is recombined as Penetrigonias dakotensis'
  • 'Caenopus platycephalus nanolophus belongs to Caenopus platycephalus' according to Troxell 1921
  • 'Procaenopus premitis is a subjective synonym of Trigonias osborni'
  • 'Caenopus simplicidens is a nomen dubium'
  • 'Caenopus yoderensis is a nomen dubium'
  • 'Ceratomorpha belongs to Perissodactyla'
  • 'Diceratheriinae belongs to Rhinocerotidae'
  • 'Diceratherium belongs to Diceratheriinae'
  • 'Diceratherium aberrans is a subjective synonym of Menoceras arikarense'
  • 'Diceratherium arikarense is recombined as Menoceras arikarense'
  • 'Diceratherium armatum belongs to Diceratherium'
  • 'Diceratherium barbouri is recombined as Menoceras barbouri'
  • 'Menoceras cooki is a subjective synonym of Menoceras arikarense'
  • 'Diceratherium cuspidatum is a subjective synonym of Diceratherium annectens'
  • 'Diceratherium gregorii is a subjective synonym of Diceratherium armatum'
  • 'Diceratherium jamberi is a subjective synonym of Peraceras profectum'
  • 'Diceratherium lobatum is a subjective synonym of Diceratherium armatum'
  • 'Diceratherium loomisi is a subjective synonym of Menoceras arikarense'
  • 'Diceratherium nanum is a subjective synonym of Diceratherium annectens'
  • 'Diceratherium niobrarensis is corrected as Diceratherium niobrarense and belongs to Diceratherium'
  • 'Diceratherium petersoni is a subjective synonym of Diceratherium niobrarense'
  • 'Diceratherium proavitum is a subjective synonym of Diceratherium tridactylum'
  • 'Diceratherium schiffi is a subjective synonym of Menoceras arikarense'
  • 'Eotrigonias borissiaki belongs to Eotrigonias' according to Beliaeva 1959
  • 'Eotrigonias borissiaki is recombined as Teletaceras borissiaki'
  • 'Eotrigonias mortivallis is recombined as Teletaceras mortivallis'
  • 'Epiaphelops virgasectus is a subjective synonym of Diceratherium niobrarense'
  • 'Eusyodon maximus is a nomen dubium'
  • 'Floridaceras belongs to Aceratheriinae'
  • 'Floridaceras whitei belongs to Floridaceras'
  • 'Galushaceras belongs to Aceratheriinae'
  • 'Galushaceras levellorum belongs to Galushaceras'
  • 'Hyracodon quadriplicatus is a subjective synonym of Subhyracodon occidentalis'
  • 'Leptaceratherium is a subjective synonym of Subhyracodon'
  • 'Menoceras belongs to Menoceratinae'
  • 'Menoceras falkenbachi is a subjective synonym of Menoceras barbouri'
  • 'Menoceras marslandensis is a subjective synonym of Menoceras barbouri'
  • 'Menoceratinae belongs to Rhinocerotidae'
  • 'Aceratherium egrerius is a subjective synonym of Diceratherium niobrarense'
  • 'Moschoedestes is a subjective synonym of Menoceras'
  • 'Moschoedestes delahoensis is a subjective synonym of Menoceras barbouri'
  • 'Paraphelops rooksensis is a subjective synonym of Teleoceras hicksi'
  • 'Teleoceras yumensis is a subjective synonym of Teleoceras hicksi'
  • 'Penetrigonias belongs to Rhinocerotidae'
  • 'Penetrigonias hudsoni is a subjective synonym of Penetrigonias dakotensis'
  • 'Peraceras belongs to Aceratheriinae'
  • 'Peraceras hessei belongs to Peraceras'
  • 'Peraceras ponderis is a subjective synonym of Teleoceras hicksi'
  • 'Peraceras superciliosus is corrected as Peraceras superciliosum and belongs to Peraceras'
  • 'Peraceras troxelli is a subjective synonym of Peraceras superciliosum'
  • 'Perissodactyla was reranked as a order and belongs to Mammalia'
  • 'Procaenopus is a subjective synonym of Trigonias'
  • 'Rhinoceros annectens is recombined as Diceratherium annectens'
  • 'Rhinoceros crassus is a nomen dubium'
  • 'Subhyracodon hesperius is a subjective synonym of Subhyracodon occidentalis'
  • 'Rhinoceros matutinus is recombined as Diceratherium matutinum'
  • 'Rhinoceros meridianus is recombined as Teleoceras meridianum'
  • 'Rhinoceros occidentalis is recombined as Subhyracodon occidentalis'
  • 'Rhinoceros oregonensis is a nomen dubium'
  • 'Rhinoceros proterus is recombined as Teleoceras proterum'
  • 'Rhinocerotidae belongs to Rhinocerotoidea'
  • 'Rhinocerotoidea belongs to Ceratomorpha'
  • 'Skinneroceras belongs to Diceratheriinae'
  • 'Skinneroceras manningi belongs to Skinneroceras'
  • 'Subhyracodon belongs to Diceratheriinae'
  • 'Subhyracodon gidleyi is a subjective synonym of Subhyracodon occidentalis'
  • 'Subhyracodon kewi belongs to Subhyracodon'
  • 'Subhyracodon metalophum is a subjective synonym of Subhyracodon occidentalis'
  • 'Subhyracodon sagittatus is recombined as Penetrigonias sagittatus'
  • 'Teleoceras belongs to Teleoceratini'
  • 'Teleoceras brachyrhinum belongs to Teleoceras'
  • 'Teleoceras felicis is a nomen dubium'
  • 'Teleoceras guymonense belongs to Teleoceras'
  • 'Teleoceras hicksi belongs to Teleoceras'
  • 'Teleoceras major belongs to Teleoceras'
  • 'Teleoceras medicornutum belongs to Teleoceras'
  • 'Teleoceras minor is a subjective synonym of Teleoceras meridianum'
  • 'Teleoceras ocotensis is a subjective synonym of Teleoceras hicksi'
  • 'Teleoceras schultzi is a subjective synonym of Teleoceras hicksi'
  • 'Teleoceras thomsoni is a subjective synonym of Teleoceras medicornutum'
  • 'Teleoceratini belongs to Aceratheriinae'
  • 'Teletaceras belongs to Rhinocerotidae'
  • 'Teletaceras radinskyi belongs to Teletaceras'
  • 'Trigonias belongs to Rhinocerotidae'
  • 'Trigonias cooki is a subjective synonym of Trigonias osborni'
  • 'Trigonias gregoryi is a subjective synonym of Trigonias wellsi'
  • 'Trigonias hypostylus is a subjective synonym of Trigonias osborni'
  • 'Trigonias osborni belongs to Trigonias'
  • 'Trigonias paucidens is a subjective synonym of Trigonias osborni'
  • 'Trigonias precopei is a subjective synonym of Trigonias osborni'
  • 'Trigonias preoccidentalis is a subjective synonym of Trigonias osborni'
  • 'Trigonias taylori is a subjective synonym of Trigonias osborni'
  • 'Trigonias tetradactylum is a subjective synonym of Trigonias osborni'
  • 'Trigonias wellsi belongs to Trigonias'
  • 'Uintaceras belongs to Rhinocerotidae'
  • 'Uintaceras radinskyi belongs to Uintaceras'
  • 'Woodoceras belongs to Rhinocerotidae'
  • 'Woodoceras brachyops belongs to Woodoceras'