Opinions from J. J. Hooker and D. Dashzeveg 2004

  • 'Ancylopoda was reranked as a infraorder and belongs to Lophodontomorpha'
  • 'Brontotheridae belongs to Titanotheriomorpha'
  • 'Cardiolophus belongs to Ancylopoda'
  • 'Ceratomorpha was reranked as a unranked clade and belongs to Euperissodactyla'
  • 'Chalicotheriidae belongs to Chalicotherioidea'
  • 'Chalicotherioidea belongs to Ancylopoda'
  • 'Cymbalophus belongs to Equoidea'
  • 'Eomoropidae is a subjective synonym of Chalicotheriidae'
  • 'Eomoropus belongs to Chalicotheriidae'
  • 'Equidae belongs to Equoidea'
  • 'Equoidea belongs to Hippomorpha'
  • 'Euperissodactyla belongs to Lophodontomorpha'
  • 'Heptodon belongs to Tapiroidea'
  • 'Hippomorpha was reranked as a unranked clade and belongs to Euperissodactyla'
  • 'Homogalax belongs to Ancylopoda'
  • 'Homogalax namadicus belongs to Homogalax' according to Dashzeveg 1979
  • 'Homogalax namadicus belongs to Homogalax'
  • 'Hyracotherium belongs to Palaeotheriidae'
  • 'Hyracotherium gabuniai is recombined as Protomoropus gabuniai'
  • 'Hyracotherium gabuniai is recombined as Orientolophus gabuniai' according to Ting 1993
  • 'Hyracotherium gabuniai is recombined as Orientolophus gabuniai' according to Ting 1998
  • 'Isectolophidae is an invalid subgroup of Ancylopoda'
  • 'Isectolophus belongs to Ancylopoda'
  • 'Karagalax belongs to Ceratomorpha'
  • 'Lambdotherium belongs to Brontotheridae'
  • 'Litolophus belongs to Chalicotheriidae'
  • 'Lophiaspis belongs to Lophiodontidae'
  • 'Lophiodon belongs to Lophiodontidae'
  • 'Lophiodontidae belongs to Chalicotherioidea'
  • 'Lophocion belongs to Phenacodontidae'
  • 'Lophodontomorpha belongs to Perissodactyla'
  • 'Orientolophus belongs to Lophodontomorpha'
  • 'Orientolophus hengdongensis belongs to Orientolophus'
  • 'Pachynolophus belongs to Ceratomorpha'
  • 'Palaeotheriidae belongs to Equoidea'
  • 'Paleomoropus belongs to Lophiodontidae'
  • 'Pliolophus belongs to Equidae'
  • 'Protomoropus belongs to Chalicotherioidea'
  • 'Rhinocerotoidea belongs to Ceratomorpha'
  • 'Selenida is an invalid subgroup of Perissodactyla'
  • 'Sifrhippus belongs to Equoidea'
  • 'Tapiroidea belongs to Ceratomorpha'
  • 'Tapiromorpha is an invalid subgroup of Lophodontomorpha'
  • 'Titanotheriomorpha belongs to Perissodactyla'