Leptarctus ancipidens (White) (Carnivora: Mammalia) from the Punchbowl Formation, Cajon Pass. California by Hugh M. Wagner and Robert E. Reynolds. Bull. Southern California Acad. Sci., 82(3): 131-137,1983. A maxillary fragment of the mustelid carnivore Leptarctus ancipidens from the Punchbowl Formation exposed in Cajon Pass. San Bernardino County, California is the first record of the species from California, and compares favorably with specimens from the type locality in Florida which produces the Thomas Farm Local Fauna. That local fauna was previously known to be correlated with the Hemingfordian North American Land Mammal age and this specimen re-affirms the previously published Hemingfordian age of the Punchbowl Formation at the locality where this specimen was recovered.