Opinions from G. F. Gunnell and V. L. Yarborough 2000

  • 'Canis marshii is a subjective synonym of Palaeosyops paludosus'
  • 'Eometarhinus is a subjective synonym of Palaeosyops'
  • 'Eometarhinus huerfanensis is a subjective synonym of Palaeosyops fontinalis'
  • 'Eotitanops gregoryi is a subjective synonym of Eotitanops borealis'
  • 'Eotitanops major is a subjective synonym of Eotitanops borealis'
  • 'Eotitanops minimus belongs to Eotitanops'
  • 'Eotitanops princeps is a subjective synonym of Eotitanops borealis'
  • 'Lambdotherium brownianum is a subjective synonym of Eotitanops borealis'
  • 'Limnohyops is a subjective synonym of Palaeosyops'
  • 'Limnohyops matthewi is a subjective synonym of Palaeosyops paludosus'
  • 'Limnohyops monoconus is a subjective synonym of Palaeosyops laevidens'
  • 'Limnohyops priscus is a subjective synonym of Palaeosyops laevidens'
  • 'Limnohyus is a subjective synonym of Palaeosyops'
  • 'Limnohyus laevidens is recombined as Palaeosyops laevidens'
  • 'Limnohyus laevidens is recombined as Palaeosyops laevidens' according to Trouessart 1898
  • 'Limnohyus laevidens is recombined as Palaeosyops laevidens' according to Roger 1896
  • 'Limnohyus laevidens is recombined as Palaeosyops laevidens' according to Earle 1892
  • 'Limnohyus laevidens is recombined as Palaeosyops laevidens' according to Cope 1884
  • 'Limnohyus laticeps is recombined as Palaeosyops laticeps'
  • 'Limnohyus robustus is recombined as Palaeosyops robustus'
  • 'Palaeosyops borealis is recombined as Eotitanops borealis'
  • 'Palaeosyops copei is a subjective synonym of Palaeosyops robustus'
  • 'Palaeosyops diaconus is a subjective synonym of Palaeosyops robustus'
  • 'Palaeosyops fontinalis belongs to Palaeosyops'
  • 'Palaeosyops grangeri is a subjective synonym of Palaeosyops robustus'
  • 'Palaeosyops humilis is a subjective synonym of Palaeosyops robustus'
  • 'Palaeosyops junior is a subjective synonym of Palaeosyops paludosus'
  • 'Palaeosyops leidyi is a subjective synonym of Palaeosyops robustus'
  • 'Palaeosyops longirostris is a subjective synonym of Palaeosyops paludosus'
  • 'Palaeosyops major is a subjective synonym of Palaeosyops paludosus'
  • 'Palaeosyops paludosus belongs to Palaeosyops'