PBDB

Opinions from H. E. Wood 1927

'Aceratherium copei is recombined as Subhyracodon copei'
'Metacaenopus egregius is a subjective synonym of Diceratherium niobrarense'
'Aceratherium mite is recombined as Caenopus mitis'
'Aceratherium mite is recombined as Caenopus mitis' according to Osborn and Matthew 1909
'Aceratherium mite is recombined as Caenopus mitis' according to Cope 1880
'Aceratherium platycephalum is recombined as Amphicaenopus platycephalus'
'Aceratherium stigeri is a subjective synonym of Menoceras cooki'
'Aceratherium tridactylum is recombined as Subhyracodon tridactylus'
'Aceratherium trigonodum is recombined as Subhyracodon trigonodus'
'Amphicaenopus belongs to Rhinocerotidae'
'Anchisodon is a subjective synonym of Subhyracodon'
'Caenopus persistens is recombined as Diceratherium persistens'
'Caenopus pumilus is a subjective synonym of Caenopus mitis'
'Caenopus simplicidens is a nomen dubium'
'Diceratherium aberrans is a subjective synonym of Menoceras cooki'
'Diceratherium arikarense is a subjective synonym of Menoceras cooki'
'Diceratherium avum belongs to Diceratherium'
'Diceratherium cooki is recombined as Menoceras cooki'
'Diceratherium loomisi is a subjective synonym of Menoceras cooki'
'Diceratherium proavitum is a subjective synonym of Subhyracodon tridactylus'
'Diceratherium schiffi is a subjective synonym of Menoceras cooki'
'Eotrigonias belongs to '
'Eotrigonias petersoni belongs to Eotrigonias'
'Eotrigonias rhinocerinus belongs to Eotrigonias'
'Epitriplopus belongs to Hyracodontidae'
'Hyrachyus obliquidens is recombined as Prothyracodon obliquidens'
'Hyracodon priscidens is a subjective synonym of Hyracodon arcidens'
'Hyracodon quadriplicatus is recombined as Aceratherium quadriplicatum' according to Matthew 1899
'Hyracodon quadriplicatus is recombined as Aceratherium quadriplicatum' according to Brandt 1878
'Hyracodon quadriplicatus is recombined as Aceratherium quadriplicatum' according to Cope 1875
'Hyracodon quadriplicatus is a nomen dubium'
'Hyracodon quadriplicatus is recombined as Anchisodon quadriplicatus' according to Osborn and Matthew 1909
'Hyracodon quadriplicatus is recombined as Anchisodon quadriplicatus' according to Cope 1879
'Hyracodon selenidens is a subjective synonym of Hyracodon arcidens'
'Leptaceratherium is a subjective synonym of Subhyracodon'
'Metacaenopus is a subjective synonym of Diceratherium'
'Prothyracodon intermedium is a subjective synonym of Prothyracodon obliquidens'
'Prothyracodon uintensis is recombined as Epitriplopus uintensis'
'Rhinoceros nebraskensis is recombined as Hyracodon nebraskensis'
'Rhinoceros occidentalis is recombined as Subhyracodon occidentalis'
'Subhyracodon belongs to Rhinocerotidae'
'Subhyracodon gidleyi belongs to Subhyracodon'
'Subhyracodon metalophum belongs to Subhyracodon'
'Systemodon is a subjective synonym of Homogalax'
'Trigonias gregoryi belongs to Trigonias'
'Trigonias paucidens belongs to Trigonias'
'Trigonias tetradactylum is a subjective synonym of Trigonias osborni'
'Trigonias wellsi belongs to Trigonias'
'Triplopodidae was reranked as the subfamily Triplopodinae and belongs to Hyracodontidae' according to Osborn and Wortman 1892
'Triplopus grangeri belongs to Triplopus'