New mesonychian dentitions from the Paleocene and Eocene of the Bighorn Basin, Wyoming

M. A. O'Leary, K. D. Rose

Research output: Contribution to journalArticle

Abstract

This paper describes several exceptional mesonychian dental specimens from the late Paleocene-early Eocene Fort Union and Willwood formations of the Bighorn Basin. They include three new species of Dissacus, one of late Tiffanian and two of Wasatchian age, and several virtually complete dentitions of D. praenuntius. Dissacus longaevus lacks diagnostic traits, and is here considered a nomen dubium. Other specimens reported include well-preserved upper and lower dentitions of Pachyaena gigantea, the first nearly complete maxillary dentition of P. gracilis, and a new specimen of the very rare basal Wasatchian Hapalodectes anthracinus. -from Authors

Original languageEnglish (US)
Pages (from-to)147-172
Number of pages26
JournalAnnals of Carnegie Museum
Volume64
Issue number2
StatePublished - 1995

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dentition
Paleocene
teeth
Eocene
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basin
new species

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Geology

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New mesonychian dentitions from the Paleocene and Eocene of the Bighorn Basin, Wyoming. / O'Leary, M. A.; Rose, K. D.

In: Annals of Carnegie Museum, Vol. 64, No. 2, 1995, p. 147-172.

Research output: Contribution to journalArticle

O'Leary, M. A. ; Rose, K. D. / New mesonychian dentitions from the Paleocene and Eocene of the Bighorn Basin, Wyoming. In: Annals of Carnegie Museum. 1995 ; Vol. 64, No. 2. pp. 147-172.
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