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Ourayia

From Wikipedia, the free encyclopedia
Extinct omomyid primate

Ourayia
Scientific classificationEdit this classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Primates
Suborder:Haplorhini
Family:Omomyidae
Genus:Ourayia
Gazin, 1958
Species
  • O. uintensis(Osborn, 1895)
  • O. hopsoni(Robinson, 1968)

Ourayia is a genus of extinctomomyidprimate from theUinta Formation.

Description

[edit]

Ourayia had reducedcanines and largerincisors when compared to other basal primates, likeNotharctus. They also have 1 less premolar thannotharctines.[1] Compared to other omomyids from the time,Ourayia is considered large, weighing around 1,500 grams.[2] They had enlarged orbits, like most omomyids.[1] Some authors posit thatOurayia descended fromHemiacodon.[1]

Classification

[edit]

Historically, species ofOurayia have been assigned toMytonius andMicrosyops,[3] however they were moved toOurayia byCharles Lewis Gazin in 1958.[1]

References

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  1. ^abcdSimons, Elwyn (1961-10-30)."The dentition of Ourayia: its bearing on relationships of omomyid prosimians".Postilla (54).
  2. ^Dunn, Rachel H.; Sybalsky, Julia M.; Conroy, Glenn C.; Rasmussen, D. Tab (2006)."Hindlimb adaptations in Ourayia and Chipetaia, relatively large-bodied omomyine primates from the Middle Eocene of Utah".American Journal of Physical Anthropology.131 (3):303–310.doi:10.1002/ajpa.20407.ISSN 1096-8644.
  3. ^"Mindat.org".www.mindat.org. Retrieved2025-09-15.
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