(specimen not known in GBIF)
| Lower vertebrates from the late Cretaceous Hell Creek Formation, McCone County, Montana R Estes, P Berberian and C A M Meszoely (1969) Breviora 337: 1-33 | |
| A revision of the fossil Selenodont Artiodactyls from the middle Miocene Thomas Farm, Gilchrist County, Florida V J Maglio (1966) Breviora 255: 1-27 |