Named By: Matthew - 1918.
Classification: Chordata, Mammalia, Carnivora, Caniformia, Amphicyonidae.
Species: P. medius (type), P. ossifragus, P. robustus.
Size: Estimated around 100 kilograms in weight.
Known locations: USA.
Time period: Burdigalian to Langhian of the Miocene.
Fossil representation: Remains of many individuals.
With fossils being recovered from both Oregon and Florida, Pliocyon seems to have a distribution that covered most of the United States.
- Contributions to the Snake Creek Fauna with notes upon the Pleistocene of western Nebraska, American Museum Expedition of 1916. - Bulletin of the American Museum of Natural History 38(7):183-229. - W. D. Matthew - 1918.
- A Miocene amphicyonid (Mammalia: Carnivora) from the Bone Valley Formation of Florida. - Journal of Vertebrate Paleontology 4(1):122-125 - A. Berta & H. Galiano - 1984.