Opinions from W. W. Dalquest and G. E. Schultz 1992

  • 'Anancus bensonensis is recombined as Cuvieronius bensonensis'
  • 'Auchenia vitakeriana is a nomen dubium'
  • 'Bison occidentalis is a subjective synonym of Bison bison'
  • 'Camelops kansanus is a nomen vanum'
  • 'Camelops kansanus is a nomen vanum' according to Hager 1974
  • 'Canis edwardii belongs to Canis'
  • 'Canis priscolatrans is a subjective synonym of Canis rufus'
  • 'Elephas (Euelephas) imperator is recombined as Mammuthus imperator'
  • 'Equus (Asinus) calobatus belongs to Equus (Asinus)'
  • 'Equus giganteus belongs to Equus'
  • 'Equus semiplicatus is a nomen dubium'
  • 'Felis fatalis is recombined as Smilodon fatalis'
  • 'Felis studeri is recombined as Acinonyx studeri'
  • 'Felis trumani is recombined as Acinonyx trumani'
  • 'Holomeniscus is a nomen dubium'
  • 'Machaerodus floridanus is a subjective synonym of Smilodon fatalis'
  • 'Microsorex is a subjective synonym of Sorex' according to George 1988
  • 'Microsorex is a subjective synonym of Sorex' according to Diersing 1980
  • 'Microsorex is a subjective synonym of Sorex'
  • 'Microsorex minutus is recombined as Sorex minutus'
  • 'Microsorex minutus belongs to Microsorex' according to Brown 1908
  • 'Microsorex pratensis is recombined as Sorex pratensis'
  • 'Microsorex pratensis belongs to Microsorex' according to Hibbard 1944
  • 'Mictomys is a subjective synonym of Synaptomys'
  • 'Mus bursarius is recombined as Geomys bursarius'
  • 'Mus pennsylvanicus is recombined as Microtus pennsylvanicus'
  • 'Musculus leucopus is recombined as Peromyscus leucopus'
  • 'Neosorex is a subjective synonym of Sorex'
  • 'Neosorex lacustris is recombined as Sorex lacustris'
  • 'Onychomys fossilis is a subjective synonym of Onychomys pedroensis'
  • 'Onychomys jinglebobensis is a subjective synonym of Onychomys pedroensis'
  • 'Parageomys is a subjective synonym of Geomys'
  • 'Parageomys tobinensis is recombined as Geomys tobinensis'
  • 'Pedomys is a subjective synonym of Pitymys'
  • 'Perognathus hispidus is recombined as Chaetodipus hispidus'
  • 'Perognathus hispidus is recombined as Chaetodipus hispidus' according to Hafner and Hafner 1983
  • 'Perognathus hispidus belongs to Perognathus' according to Baird 1858
  • 'Protocamelus virginiensis is a nomen dubium'
  • 'Smilodon californicus is a subjective synonym of Smilodon fatalis'
  • 'Smilodon nebraskensis is a subjective synonym of Smilodon fatalis'
  • 'Smilodon trinitiensis is a subjective synonym of Smilodon fatalis'
  • 'Smilodontopsis conardi is a subjective synonym of Smilodon fatalis'
  • 'Smilodontopsis troglodytes is a subjective synonym of Smilodon fatalis'
  • 'Sorex hoyi belongs to Sorex'
  • 'Sorex hoyi belongs to Sorex' according to George 1988
  • 'Spermophilus elegans belongs to Spermophilus'
  • 'Spermophilus elegans belongs to Spermophilus' according to Michener and Koeppel 1985
  • 'Spermophilus elegans belongs to Spermophilus' according to Fagerstone 1982
  • 'Spermophilus elegans is recombined as Citellus elegans' according to Davis 1939
  • 'Spermophilus elegans is recombined as Citellus elegans' according to Howell 1928
  • 'Tapirus haysii is a nomen dubium'
  • 'Tapirus haysii is a nomen dubium' according to Simpson 1945
  • 'Tetralophodon barbouri is recombined as Stegomastodon barbouri'
  • 'Trucifelis is a subjective synonym of Smilodon'
  • 'Urus priscus is recombined as Bison priscus'
  • 'Vulpes macrotis belongs to Vulpes'