Anacodon was extremely robust compared to other members of its family, and may have been capable of climbing and digging like modern bears.

[1] Ten years later, in 1892, Henry Fairfield Osborn and Jacob Lawson Wortman instead assigned it to the family Arctocyonidae.

[3] In 1937, George Gaylord Simpson suggested that Anacodon may have represented a late-surviving member of an arctocyonid lineage deriving from Claenodon.

[4] A second mandible, considerably smaller than A. ursidens, was later recovered in the Buckman Hollow locality of Wyoming's Almy Formation, and in 1956, it was formally described by Charles Lewis Gazin.

[8] Anacodon is unusually robust by arctocyonid standards, to the point where the remains of its postcranial skeleton were initially mistaken for those of a taeniodont.