Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

Integrated Taxonomic Information System (ITIS)

Name Relationship
Bison C. H. Smith, 1827 Preferred
Bonasus Fitzinger, 1860 Junior synonym

Paleobiology Database

Name Relationship
Bison Hamilton-Smith, 1827 Preferred
Bison aguascalientes Mooser and Dalquest 1975 Synonym
Bison alleni Marsh 1877
Bison angularis Figgins 1933
Bison californicus Rhoads 1897
Bison chaneyi Cook 1928
Bison crassicornis Richardson 1854
Bison ferox Marsh 1877
Bison figginsi Hay and Cook 1928
Bison geisti Skinner and Kaisen 1947
Bison kansensis McClung 1905
Bison occidentalis Lucas, 1898
Bison oliverhayi Figgins 1933
Bison pacificus Hay 1927
Bison praeoccidentalis Skinner and Kaisen 1947
Bison regius Hay 1913
Bison rotundus Figgins 1933
Bison sylvestris Hay, 1915
Bison taylori Hay and Cook 1928
Bison texanus Hay and Cook 1928
Bison willistoni Martin 1924
Bos americanus Gmelin 1788
Bos arizonica Blake 1898
Bos crampianus Cope 1894
Bos scaphoceras
Sus americana Harlan
Bison europaeus Owen 1849


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