Tatmanius

Tatmanius Temporal range: Early Eocene–Early Eocene PreꞒ Ꞓ O S D C P T J K Pg N
Dentition of T. szalayi
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Suborder:	Haplorhini
Family:	† Omomyidae
Subfamily:	† Anaptomorphinae
Genus:	† Tatmanius Brown and Rose, 1991
Species
T. szalayi (Brown and Rose, 1991)

Tatmanius is a genus of omomyid primate from Eocene North America. ^[1]

Description

Tatmanius was rather derived, having similar dentition to Trogolemur . Tatmanius lacks a second premolar, much like the related Pseudotetonius . ^[2] The third premolar was also small compared to other anaptomorphines, and the fourth bore a bilobed root. ^[3] It is speculated that Tatmanius descended from Pseudotetonius, as they share remarkable similarity in dentition. ^[2]

References

1. "PBDB Taxon". paleobiodb.org. Retrieved 2025-09-18.
2. Beard, K. Christopher; Beard, K. Christopher; Krishtalka, Leonard; Stucky, Richard Keith (1992-02-28). "Revision of the Wind River faunas, Early Eocene of central Wyoming. Part 12. New species of omomyid Primates (Mammalia: Primates: Omomyidae) and omomyid taxonomic composition across the Early-Middle Eocene boundary". Annals of the Carnegie Museum. 61 (1): 39––62. doi:10.5962/p.215170.
3. Bown, Thomas M.; Rose, Kenneth D. (1991-06-01). "Evolutionary relationships of a new genus and three new species of Omomyid primates (Willwood Formation, Lower Eocene, Bighorn Basin, Wyoming)". Journal of Human Evolution. 20 (6): 465–480. doi:10.1016/0047-2484(91)90020-V. ISSN   0047-2484.