Uintanius

Uintanius; Temporal range:
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Infraclass:	Placentalia
Order:	Primates
Family:	†Omomyidae
Genus:	†Uintanius; Matthew, 1915
Species
	U. ameghini (Wortman, 1904); U. rutherfurdi (Robinson, 1966); U. szalayi (Beard, 1987);
Synonyms
	Jemezius szalayi Huerfanius rutherfurdi

Uintanius is a genus of omomyine primate known from Eocene North America.¹

Description

Uintanius has been compared to Omomys in dentition, with both genera bearing low crowned molars (a trait nearly exclusive to them among the omomyines).²

Classification

The positioning of Uintanius on the omomyid family tree has been contested, with some phylogenies placing the genus with the anaptomorphines,³ while others return it as a basal omomyine.⁴³ The unique morphology of Uintanius has caused it to be grouped in the tribe Uintaniini alongside Altanius,² though the nature of Altanius as an incartae sedis may bring that classification into question.⁵ Another genus of uintaniin, Jemezius, has been synonymized with Uintanius.²

References

"Record Uintanius ameghini Wortman, 1904 | Collections Search Center, Smithsonian Institution". collections.si.edu. Retrieved 2025-09-25.
Hooker, J. J. (2007). "A New Microchoerine Omomyid (primates, Mammalia) from the English Early Eocene and Its Palaeobiogeographical Implications". Palaeontology. 50 (3): 739–756. doi:10.1111/j.1475-4983.2007.00655.x. ISSN 1475-4983.
Tornow, Matthew A. (2008). "Systematic Analysis of the Eocene Primate Family Omomyidae Using Gnathic and Postcranial Data". Bulletin of the Peabody Museum of Natural History. 49 (1): 43–129. doi:10.3374/0079-032X(2008)49[43:SAOTEP]2.0.CO2. ISSN 0079-032X.
Williams, Blythe A.; Kirk, E. Christopher (2008-12-01). "New Uintan primates from Texas and their implications for North American patterns of species richness during the Eocene". Journal of Human Evolution. 55 (6): 927–941. doi:10.1016/j.jhevol.2008.07.007. ISSN 0047-2484.
Gingerich, Philip D.; Dashzeveg, Demberelyin; Russell, Donald E. (1991-01-01). "Dentition and systematic relationships of Altanius orlovi (Mammalia, Primates) from the early Eocene of Mongolia". Geobios. 24 (5): 637–646. doi:10.1016/0016-6995(91)80029-Y. ISSN 0016-6995.

[1] "Record Uintanius ameghini Wortman, 1904 | Collections Search Center, Smithsonian Institution". collections.si.edu. Retrieved 2025-09-25.

[:1-2] Hooker, J. J. (2007). "A New Microchoerine Omomyid (primates, Mammalia) from the English Early Eocene and Its Palaeobiogeographical Implications". Palaeontology. 50 (3): 739–756. doi:10.1111/j.1475-4983.2007.00655.x. ISSN 1475-4983.

[:0-3] Tornow, Matthew A. (2008). "Systematic Analysis of the Eocene Primate Family Omomyidae Using Gnathic and Postcranial Data". Bulletin of the Peabody Museum of Natural History. 49 (1): 43–129. doi:10.3374/0079-032X(2008)49[43:SAOTEP]2.0.CO2. ISSN 0079-032X.

[4] Williams, Blythe A.; Kirk, E. Christopher (2008-12-01). "New Uintan primates from Texas and their implications for North American patterns of species richness during the Eocene". Journal of Human Evolution. 55 (6): 927–941. doi:10.1016/j.jhevol.2008.07.007. ISSN 0047-2484.

[5] Gingerich, Philip D.; Dashzeveg, Demberelyin; Russell, Donald E. (1991-01-01). "Dentition and systematic relationships of Altanius orlovi (Mammalia, Primates) from the early Eocene of Mongolia". Geobios. 24 (5): 637–646. doi:10.1016/0016-6995(91)80029-Y. ISSN 0016-6995.

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