Douglass E. (1905) The Tertiary of Montana, Memoirs of the Carnegie Museum 2 5, 203-221 |
Hay O. P. (1906) Descriptions of new species of turtles of the genus Testudo, collected from the Miocene by the Carnegie Museum; together with a description of the skull of Stylemys nebrascensis, Annals of Carnegie Museum 4, 15-20 |
Simpson G. G. (1927) A North American Oligocene edentate, Annals of Carnegie Museum 17 2, 283-299 |
Gilmore C. W. (1928) Fossil lizards of North America, Memoirs of the National Academy of Sciences 22 3, 1-201 |
Burke J. J. (1936) Ardynomys and Desmatolagus in the North American Oligocene, Annals of Carnegie Museum 25, 133-154 |
Schultz C. B., Falkenbach C. H. (1956) Miniochoerinae and Oreonetinae two new subfamilies of oreodonts, Bulletin of the American Museum of Natural History 109 4, 373-482 |
Radinsky L. B. (1963) Origin and Early Evolution of North American Tapiroidea, Peabody Museum of Natural History Bulletin 17, 1-118 |
Reed C. A., Turnbull W. D. (1965) The Mammalian Genera Arctoryctes and Cryptoryctes From the Oligocene and Miocene of North America, Fieldiana 15 2 |
Radinsky L. B. (1967) A Review of the Rhinocerotoid Family Hyracodontidae (Perissodactyla), Bulletin of the American Museum of Natural History 136 1, 1-46 |
Black C. C. (1968) The Oligocene rodent Ischyromys and discussion of the family Ischyromyidae, Annals of Carnegie Museum 39 18 |
Wilson J. A. (1971) Early Tertiary vertebrate faunas, Vieja Group. Trans-Pecos Texas: Agriochoeridae and Merycoidodontidae, Texas Memorial Museum Bulletin 18, 1-83 |
Sullivan R. M. (1979) Revision of the Paleogene genus Glyptosaurus (Reptilia, Anguidae), Bulletin of the American Museum of Natural History 163 1, 1-72 |
Wood A. E. (1980) The Oligocene Rodents of North America, Transactions of the American Philosophical Society 70 5, 1-68 |
Prothero D. R. (1986) A New Oromerycid (Mammalia, Artiodactyla) from the Early Oligocene of Montana, Journal of Paleontology 60 2, 458-465 |
Prothero D. R. (1996) Hyracodontidae, The Terrestrial Eocene-Oligocene Transition in North America, 652-663 |
Tabrum A. R., Prothero D. R., et al (1996) Magnetostratigraphy and biostratigraphy of the Eocene-Oligocene transition, southwestern Montana, The Terrestrial Eocene-Oligocene Transition in North America, 278-311 |
Alroy J. (2002) Synonymies and reidentifications of North American fossil mammals |
Asher R. J., McKenna M. C., et al (2002) Morphology and relationships of Apternodus and other extinct, zalambdodont, placental mammals, Bulletin of the American Museum of Natural History 273, 1-117 |
Prothero D. R. (2005) The Evolution of North American Rhinoceroses, 1-218 |
Ehret D. J. (2007) Skeletochronology: a method for determing the individual age and growth of modern and fossil tortoises (Reptilia: Testudines), Bulletin of the Florida Museum of Natural History 47 2, 49-72 |
Korth W. W. (2012) Two new eomyid rodents (Mammalia) from the Chadronian (latest Eocene) of Montana and Wyoming, Paludicola 9 1, 7-12 |