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In the Carnivora, the carnassials are the modified last upper premolar and the first molar. In the Creodonta, the carnassials were further back in the jaw–first upper and second lower or second upper and third lower molars.
- Henry Fairfield Osborn (1907). Evolution of mammalian molar teeth. Macmillan. http://books.google.com/books?id=_0eVtpUqWswC&pg=PA11. Retrieved 20 January 2011.