Opinions from G. G. Simpson 1929

  • 'Achyrodon is a subjective synonym of Amblotherium'
  • 'Achyrodon nanus is recombined as Amblotherium nanum'
  • 'Allacodon fortis is a subjective synonym of Cimolomys gracilis'
  • 'Allacodon lentus is a subjective synonym of Cimolomys gracilis'
  • 'Allacodon pumilus is a subjective synonym of Cimolomys gracilis'
  • 'Allacodon rarus is a subjective synonym of Cimolomys gracilis'
  • 'Allodon laticeps is recombined as Ctenacodon laticeps'
  • 'Allotheria belongs to Mammalia'
  • 'Alphadon belongs to Didelphodontinae'
  • 'Alphadon marshi belongs to Alphadon'
  • 'Amblotherium belongs to Dryolestidae'
  • 'Amblotherium debilis belongs to Amblotherium'
  • 'Amblotherium soricinum belongs to Amblotherium'
  • 'Amphidon belongs to Amphidontidae'
  • 'Amphidon aequicrurius is recombined as Eurylambda aequicrurius'
  • 'Amphidon superstes belongs to Amphidon'
  • 'Amphidontidae belongs to Symmetrodonta'
  • 'Amphilestes belongs to Amphilestinae'
  • 'Amphilestinae belongs to Triconodontidae'
  • 'Amphitheriidae belongs to Pantotheria'
  • 'Amphitherium belongs to Amphitheriidae'
  • 'Aploconodon belongs to Amphilestinae'
  • 'Aploconodon comoensis belongs to Aploconodon'
  • 'Archaeotrigon belongs to Paurodontidae'
  • 'Archaeotrigon brevimaxillus belongs to Archaeotrigon'
  • 'Asthenodon is a subjective synonym of Dryolestes'
  • 'Asthenodon segnis is a subjective synonym of Dryolestes priscus'
  • 'Batodon belongs to Insectivora'
  • 'Batodon tenuis belongs to Batodon'
  • 'Bolodon belongs to Plagiaulacidae'
  • 'Boreodon is a nomen dubium'
  • 'Boreodon matutinus is a nomen dubium'
  • 'Brancatherulum belongs to Paurodontidae'
  • 'Chalepotherium belongs to Tritylodontidae'
  • 'Cimolestes belongs to Didelphiidae'
  • 'Cimolestes curtus is recombined as Diaphorodon curtus'
  • 'Cimolestes cutleri is recombined as Eodelphis cutleri'
  • 'Cimolestes incisus belongs to Cimolestes'
  • 'Cimolodon agilis is a subjective synonym of Cimolomys gracilis'
  • 'Cimolomys nitidus is a subjective synonym of Cimolomys gracilis'
  • 'Cimolodon parvus is a subjective synonym of Cimolomys gracilis'
  • 'Cimolomys belongs to Ptilodontidae'
  • 'Cimolomys bellus is a subjective synonym of Cimolomys gracilis'
  • 'Cimolomys diagona is a subjective synonym of Cimolomys gracilis'
  • 'Ctenacodon belongs to Plagiaulacidae'
  • 'Ctenacodon nanus is a subjective synonym of Ctenacodon serratus'
  • 'Ctenacodon potens is recombined as Psalodon potens'
  • 'Ctenacodon scindens belongs to Ctenacodon'
  • 'Ctenacodon serratus belongs to Ctenacodon'
  • 'Delphodon belongs to Didelphiidae'
  • 'Diacynodon is a subjective synonym of Docodon'
  • 'Diaphorodon belongs to Pediomyinae'
  • 'Dicrocynodon is a subjective synonym of Docodon'
  • 'Didelphidae [misspelled as Didelphiidae] belongs to Marsupialia'
  • 'Didelphodon belongs to Didelphodontinae'
  • 'Didelphodon ferox is a subjective synonym of Diaphorodon curtus'
  • 'Didelphodon vorax belongs to Didelphodon'
  • 'Didelphops is a subjective synonym of Didelphodon'
  • 'Diplocynodon is replaced by Docodon'
  • 'Diplocynodon victor is recombined as Docodon victor'
  • 'Dipriodon is a subjective synonym of Meniscoessus'
  • 'Dipriodon lunatus is a subjective synonym of Meniscoessus robustus'
  • 'Dipriodon robustus is recombined as Meniscoessus robustus'
  • 'Docodon belongs to Docodontidae'
  • 'Docodon striatus belongs to Docodon'
  • 'Docodon superus belongs to Docodon'
  • 'Docodontidae belongs to Pantotheria'
  • 'Dryolestes belongs to Dryolestidae'
  • 'Dryolestes arcuatus is recombined as Herpetairus arcuatus'
  • 'Dryolestes gracilis is replaced by Amblotherium debilis'
  • 'Dryolestes obtusus is a nomen nudum'
  • 'Dryolestes priscus belongs to Dryolestes'
  • 'Dryolestes tenax is a nomen nudum'
  • 'Dryolestidae belongs to Pantotheria'
  • 'Ectoconodon belongs to Didelphodontinae'
  • 'Ectoconodon montanensis is a subjective synonym of Ectoconodon petersoni'
  • 'Ectoconodon petersoni belongs to Ectoconodon'
  • 'Enneodon is a subjective synonym of Docodon'
  • 'Enneodon affinis is recombined as Docodon affinis'
  • 'Enneodon crassus is recombined as Docodon crassus'
  • 'Eodelphis belongs to Pediomyinae'
  • 'Eodelphis browni is a subjective synonym of Eodelphis cutleri'
  • 'Essonodon belongs to Ptilodontidae'
  • 'Essonodon browni belongs to Essonodon'
  • 'Euangelistes belongs to Pediomyinae'
  • 'Euangelistes petersoni belongs to Euangelistes'
  • 'Eurylambda belongs to Symmetrodonta'
  • 'Euthlastus belongs to Dryolestidae'
  • 'Euthlastus cordiformis belongs to Euthlastus'
  • 'Gypsonictops belongs to Insectivora'
  • 'Gypsonictops hypoconus belongs to Gypsonictops'
  • 'Halodon is a subjective synonym of Meniscoessus'
  • 'Halodon formosus is a subjective synonym of Cimolomys gracilis'
  • 'Halodon sculptus is a subjective synonym of Meniscoessus robustus'
  • 'Halodon serratus is a subjective synonym of Cimolomys gracilis'
  • 'Herpetairus belongs to Dryolestidae'
  • 'Herpetarius belongs to Dryolestidae'
  • 'Kepolestes belongs to Dryolestidae'
  • 'Kepolestes coloradensis belongs to Kepolestes'
  • 'Kurtodon belongs to Dryolestidae'
  • 'Laodon is a subjective synonym of Amblotherium'
  • 'Laodon venustus is a subjective synonym of Amblotherium gracilis'
  • 'Laolestes belongs to Dryolestidae'
  • 'Laolestes eminens belongs to Laolestes'
  • 'Laolestes grandis belongs to Laolestes'
  • 'Liotomus belongs to Ptilodontidae'
  • 'Loxaulax belongs to Plagiaulacidae'
  • 'Malthacolestes belongs to Dryolestidae'
  • 'Malthacolestes osborni belongs to Malthacolestes'
  • 'Melanodon belongs to Dryolestidae'
  • 'Melanodon goodrichi belongs to Melanodon'
  • 'Melanodon oweni belongs to Melanodon'
  • 'Menacodon is a subjective synonym of Tinodon'
  • 'Menacodon rarus is a subjective synonym of Tinodon lepidus'
  • 'Meniscoessus belongs to Ptilodontidae'
  • 'Meniscoessus borealis belongs to Meniscoessus'
  • 'Meniscoessus conquistus belongs to Meniscoessus'
  • 'Miccylotyrans belongs to Dryolestidae'
  • 'Multituberculata belongs to Allotheria'
  • 'Nanomys minutus is a subjective synonym of Cimolomys gracilis'
  • 'Neoplagiaulax belongs to Ptilodontidae'
  • 'Nyssodon belongs to Pediomyinae'
  • 'Nyssodon punctidens belongs to Nyssodon'
  • 'Odontostylus is replaced by Trouessartia' according to Cossman 1899
  • 'Oligokyphus belongs to Tritylodontidae'
  • 'Oracodon is a subjective synonym of Meniscoessus'
  • 'Oracodon anceps is a subjective synonym of Meniscoessus robustus'
  • 'Oracodon conulus is a subjective synonym of Meniscoessus robustus'
  • 'Pantotheria belongs to Theria'
  • 'Paronychodon belongs to Ptilodontidae'
  • 'Paronychodon lacustris belongs to Paronychodon'
  • 'Paurodon belongs to Paurodontidae'
  • 'Paurodon valens belongs to Paurodon'
  • 'Paurodontidae belongs to Pantotheria'
  • 'Pediomyinae belongs to Didelphiidae'
  • 'Pediomys belongs to Pediomyinae'
  • 'Pediomys elegans belongs to Pediomys'
  • 'Pelicopsis belongs to Dryolestidae'
  • 'Peralestes belongs to Spalacotheriidae'
  • 'Peramus belongs to Paurodontidae'
  • 'Peraspalax belongs to Dryolestidae'
  • 'Phascolestes belongs to Dryolestidae'
  • 'Phascolodon belongs to Amphilestinae'
  • 'Phascolodon gidleyi belongs to Phascolodon'
  • 'Phascolotherium belongs to Amphilestinae'
  • 'Plagiaulacidae belongs to Plagiaulacoidea'
  • 'Plagiaulacoidea was reranked as a suborder and belongs to Multituberculata'
  • 'Plagiaulax belongs to Plagiaulacidae'
  • 'Priacodon belongs to Triconodontinae'
  • 'Priacodon grandaevus belongs to Priacodon'
  • 'Priacodon lulli belongs to Priacodon'
  • 'Proteodidelphys belongs to Pediomyinae'
  • 'Proteodidelphys praecursor belongs to Proteodidelphys'
  • 'Proteodidelphys praecursor belongs to Proteodidelphys' according to Ameghino 1898
  • 'Protolambda is a subjective synonym of Pediomys'
  • 'Protolambda hatcheri is recombined as Pediomys hatcheri'
  • 'Psalodon belongs to Plagiaulacidae'
  • 'Ptilodontidae belongs to Plagiaulacoidea'
  • 'Ptilodus belongs to Ptilodontidae'
  • 'Ptilodus primaevus is recombined as Cimolomys primaevus'
  • 'Selenacodon is a subjective synonym of Meniscoessus'
  • 'Selenacodon brevis is a subjective synonym of Meniscoessus robustus'
  • 'Selenacodon fragilis is a subjective synonym of Meniscoessus robustus'
  • 'Spalacotheriidae belongs to Symmetrodonta'
  • 'Spalacotherium belongs to Spalacotheriidae'
  • 'Stagodon is a nomen dubium'
  • 'Stagodon nitor is a nomen dubium'
  • 'Stagodon tumidus is a nomen dubium'
  • 'Stagodon validus is a nomen dubium'
  • 'Stereognathus belongs to Tritylodontidae'
  • 'Stylacodon is a subjective synonym of Amblotherium'
  • 'Stylacodon gracilis is recombined as Amblotherium gracilis'
  • 'Stylacodon validus is a subjective synonym of Dryolestes priscus'
  • 'Stylodon is replaced by Amblotherium'
  • 'Stylodon is replaced by Trouessartia' according to Cossman 1899
  • 'Symmetrodonta belongs to Theria'
  • 'Tanaodon is replaced by Tathiodon'
  • 'Tanaodon agilis is recombined as Tathiodon agilis'
  • 'Tathiodon belongs to Paurodontidae'
  • 'Telacodon belongs to Insectivora'
  • 'Telacodon laevis belongs to Telacodon'
  • 'Theria belongs to Mammalia'
  • 'Thlaeodon belongs to Didelphodontinae'
  • 'Thlaeodon padanicus belongs to Thlaeodon'
  • 'Tinodon belongs to Spalacotheriidae'
  • 'Tinodon bellus belongs to Tinodon'
  • 'Tinodon ferox is recombined as Priacodon ferox'
  • 'Tinodon lepidus belongs to Tinodon'
  • 'Tinodon robustus is recombined as Priacodon robustus'
  • 'Triconodon belongs to Triconodontinae'
  • 'Triconodon bisulcus is recombined as Trioracodon bisulcus'
  • 'Triconodonta belongs to Mammalia'
  • 'Triconodontidae belongs to Triconodonta'
  • 'Triconodontinae belongs to Triconodontidae'
  • 'Trioracodon belongs to Triconodontinae'
  • 'Tripriodon is a subjective synonym of Meniscoessus'
  • 'Tripriodon caperatus is a subjective synonym of Meniscoessus robustus'
  • 'Tripriodon coelatus is a subjective synonym of Meniscoessus robustus'
  • 'Tritylodon belongs to Tritylodontidae'
  • 'Tritylodontidae belongs to Tritylodontoidea'
  • 'Tritylodontoidea belongs to Multituberculata'