PBDB

Opinions from T. S. Kelly and E. B. Lander 1988

'Astrohippus albidens is recombined as Dinohippus albidens'
'Brachycrus vaughani rioosoensis is a subjective synonym of Brachycrus laticeps'
'Griphippus is a subjective synonym of Pseudhipparion'
'Hipparion gratum is recombined as Pseudhipparion gratum'
'Hippidium interpolatum is recombined as Dinohippus interpolatus'
'Hippidium spectans is recombined as Dinohippus spectans'
'Hippotherium calamarium is recombined as Stylonus calamarius'
'Hippotherium calamarium is recombined as Neohipparion calamarius' according to Trouessart 1905
'Hippotherium isonesum is recombined as Stylonus isonesus'
'Hippotherium isonesum is a subjective synonym of Merychippus seversus'
'Hippotherium retrusum is recombined as Pseudhipparion retrusum'
'Hypsiops leptoscelos is recombined as Merychyus leptoscelos'
'Mediochoerus blicki is a subjective synonym of Mediochoerus mohavensis'
'Merychippus calamarius stylodontus is recombined as Stylonus stylodontus'
'Merychippus californicus is recombined as Stylonus californicus'
'Merychippus californicus belongs to Merychippus' according to J. Merriam 1915
'Merychippus carrizoensis is recombined as Stylonus carrizoensis'
'Merychippus isonesus quintus is recombined as Stylonus quintus'
'Merychippus missouriensis is recombined as Stylonus missouriensis'
'Merychippus praecocidens is a subjective synonym of Stylonus isonesus'
'Merychippus sumani belongs to Merychippus'
'Merychippus sumani is a subjective synonym of Merychippus stylodontus' according to Bernor et al. 1980
'Merychippus tehachapiensis is a subjective synonym of Stylonus carrizoensis'
'Merychyus (Metoreodon) relictus is recombined as Merychyus relictus'
'Merychyus arenarum is a subjective synonym of Merychyus elegans'
'Merychyus calaminthus is a subjective synonym of Merychyus elegans'
'Merychyus calimontanus is a subjective synonym of Merychyus elegans'
'Merychyus crabilli belongs to Merychyus'
'Merychyus delicatus is a subjective synonym of Merychyus elegans'
'Merychyus euryops is a nomen nudum'
'Merychyus jahnsi is a subjective synonym of Merychyus elegans'
'Merychyus major belongs to Merychyus'
'Merychyus medius belongs to Merychyus'
'Metoreodon novomexicanus is a subjective synonym of Merychyus medius'
'Merychyus minimus is a subjective synonym of Merychyus elegans'
'Merychyus minimus is recombined as Merychyus elegans minimus' according to Peterson 1923
'Merychyus paniensis is a subjective synonym of Merychyus elegans'
'Merychyus smithi is recombined as Merychyus elegans smithi'
'Merychyus verrucomalus is a subjective synonym of Merychyus elegans'
'Merycochoerus (Brachycrus) was reranked as Brachycrus and belongs to Merycoidodontidae'
'Merycochoerus altiramus is a subjective synonym of Brachycrus laticeps'
'Merycochoerus buwaldi is a subjective synonym of Brachycrus laticeps'
'Merycochoerus coenopus is a subjective synonym of Merychyus medius'
'Merycochoerus coenopus belongs to Merycochoerus' according to Scott 1890
'Merycochoerus elrodi is a subjective synonym of Brachycrus laticeps'
'Merycochoerus laticeps is recombined as Brachycrus laticeps'
'Merycochoerus madisonius is a subjective synonym of Brachycrus laticeps'
'Merycochoerus obliquidens is a subjective synonym of Ticholeptus zygomaticus'
'Merycochoerus rusticus is recombined as Brachycrus rusticus'
'Pliohippus edensis is recombined as Dinohippus edensis'
'Pliohippus leidyanus is recombined as Dinohippus leidyanus'
'Pliohippus lullianus belongs to Pliohippus'
'Pliohippus osborni is recombined as Dinohippus osborni'
'Poatrephes is a subjective synonym of Ticholeptus'
'Poatrephes paludicola is a subjective synonym of Ticholeptus zygomaticus'
'Pronomotherium siouense is a subjective synonym of Brachycrus laticeps'
'Protohippus coalingensis is recombined as Dinohippus coalingensis'
'Protohippus fossulatus is recombined as Dinohippus fossulatus'
'Protohippus sejunctus is recombined as Stylonus sejunctus'
'Protohippus supremus is recombined as Pliohippus supremus'
'Stylonus belongs to '
'Stylonus seversus belongs to Stylonus'
'Ticholeptus belongs to Merycoidodontidae'
'Ticholeptus hypsodus is a subjective synonym of Ticholeptus zygomaticus'
'Ticholeptus rileyi is a subjective synonym of Ticholeptus zygomaticus'
'Ticholeptus tooheyi is a subjective synonym of Merychyus elegans'
'Ticholeptus zygomaticus belongs to Ticholeptus'
'Ustatochoerus schrammi is a subjective synonym of Ticholeptus zygomaticus'