A primitive hyracoid (Mammalia, Paenungulata) from the early Priabonian (Late Eocene) of Egypt

@article{Barrow2010APH,
  title={A primitive hyracoid (Mammalia, Paenungulata) from the early Priabonian (Late Eocene) of Egypt},
  author={Eugenie Barrow and Erik R. Seiffert and Elwyn Laverne Simons},
  journal={Journal of Systematic Palaeontology},
  year={2010},
  volume={8},
  pages={213 - 244}
}
A new hyracoid genus and species, Dimaitherium patnaiki from the early Late Eocene (early Priabonian) Birket Qarun Formation in the Fayum Depression, Egypt, is described. The material is approximately 37 million years old and three million years older than any other hyracoid known from the Fayum area. A partial cranium preserves features that are likely primitive within Paenungulata, such as a postorbital process made up solely of the frontals (without a parietal contribution), a restricted… Expand
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References

SHOWING 1-10 OF 91 REFERENCES
REASSESSMENT OF LOWER EOCENE SEGGEURIUS AMOURENSIS: ASPECTS OF PRIMITIVE DENTAL MORPHOLOGY IN THE MAMMALIAN ORDER HYRACOIDEA
TLDR
New lower dental material of the fossil hyracoid mammal, Seggeurius amourensis Crochet, 1986, from Eocene deposits of the Southern Atlas in Algeria, has prompted a reevaluation of the genus, resulting in a transfer from the subfamily Geniohyinae to Saghatheriinae. Expand
SKULL OF MEGALOHYRAX EOCAENUS (HYRACOIDEA, MAMMALIA) FROM THE OLIGOCENE OF EGYPT
TLDR
The cranial anatomy of Megalohyrax eoceanus Andrews, 1903 is described, a pliohyracid from Oligocene levels of the Jebel Qatrani Formation of the Fayum Depression in Egypt, which is probably the best-preserved pliohyacid skull known. Expand
ECOMORPHOLOGICAL DIVERSITY AMONG PALEOGENE HYRACOIDS (MAMMALIA): A NEW CURSORIAL BROWSER FROM THE FAYUM, EGYPT
TLDR
Functional inferences derived from features suggest a cursorial browser, a Paleogene analog to the bovids that do not appear in Africa until the Miocene, and further underscores that hyracoids were the dominant terrestrial ungulates of the African Paleogene. Expand
CRANIAL AND DENTAL ANATOMY OF ANTILOHYRAX PECTIDENS: A LATE EOCENE HYRACOID (MAMMALIA) FROM THE FAYUM, EGYPT
TLDR
Comparisons with newly recovered and as yet undescribed cranial material of Titanohyrax reveal more characters shared by these genera, strengthening the case for their inclusion as sister taxa within the Titanohyracinae. Expand
Taxeopody in the carpus and tarsus of Oligocene Pliohyracidae (Mammalia: Hyracoidea) and the phyletic position of hyraxes.
TLDR
The shared taxeopody of hyracoids and proboscideans, along with other osteological characters and similarities in hemoglobin, eye lens proteins, and other molecules, all suggest that Hyracoidea belongs within Paenungulata. Expand
Enigmatic new mammals from the late Eocene of Egypt
TLDR
It is proposed that the new taxa are more likely to represent specialized ‘didelphimorphian’ marsupials than Chiroptera, as some of these features can be found in various bat clades. Expand
Additional material of the enigmatic Early Miocene mammal Kelba and its relationship to the order Ptolemaiida
TLDR
Phylogenetic analysis supports the monophyly of the Ptolemaiida, including Kelba, and recovers two monophyletic clades within the order, and provides new family names for these groups and an emended diagnosis for the order. Expand
Additional specimens of Hyracoidea (Mammalia) from the Early and Middle Miocene of Kenya
Abstract We describe unpublished material of the poorly known hyracoid, Brachyhyrax aequatorialis from the Early Miocene of Songhor and Koru, Kenya, on the basis of specimens stored in the CommunityExpand
Tribosphenic mammal from the North American Early Cretaceous
TLDR
A new tribosphenic mammal from the Early Cretaceous of North America is described, based on an unusually complete specimen, and its molar structure is primitive, emphasizing the need for caution in interpretation of isolated teeth. Expand
New Oligocene hyracoids from Egypt
TLDR
A new monotypic genus, Selenohyrax, which has more gracile, selenodont teeth than any other Oligocene hyracoid, and the genus Pachyhyrax is revised on the basis of well-preserved specimens of the lower dentition. Expand
...
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4
5
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