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A canid dentary is described from the Pliocene Glenns Ferry Formation at Hagerman Fossil Beds National Monument, south-central Idaho, USA. The specimen possesses traits in alliance with and measurements falling within or exceeding those of  Canis lepophagus . The dentary, along with a tarsal IV (cuboid) and an exploded canine come from the base of the fossiliferous Sahara complex within the monument. Improved geochronologic control provided by new tephrochronologic mapping by the U.S. Geological Survey-National Park Service Hagerman Paleontology, Environments, and Tephrochronology Project supports an interpolated age of approximately 3.9 Ma, placing it in the early Blancan North American Land Mammal Age. It is conservatively referred to herein as  Canis  aff.  C .  lepophagus  with the caveat that it is an early and robust example of that species. A smaller canid, initially assigned to  Canis lepophagus  and then to  Canis ferox , is also known from Hagerman. Most specimens of  Canis ferox , including the holotype, were recently reassigned to  Eucyon ferox , but specimens from the Hagerman and Rexroad faunas were left as  Canis  sp. and possibly attributed to  C .  lepophagus.  We agree that these smaller canids belong in  Canis  and not  Eucyon  but reject placing them within  C .  lepophagus ; we refer to them here as Hagerman-Rexroad  Canis . This study confirms the presence of two approximately coyote-sized canids at Hagerman and adds to the growing list of carnivorans now known from these fossil beds.

Maybe So, Maybe Not: Canis lepophagus at Hagerman Fossil Beds National Monument, Idaho, USA