New early tertiary primates and a reappraisal of some plesiadapiformes

Thomas M. Bown, Kenneth D. Rose

Research output: Contribution to journalArticlepeer-review

Abstract

A new study of specimens of paromomyid and microsyopid primates clarifies evolution in these primates and results in new concepts of each family. The paromomyid Phenacolemur and its former synonym, Ignacius, are distinct genera, each with new Early Wasatchian species. Plesiolestes, Palaechthon, Torrejonia, Palenochtha, Navajovius, Micromomys, and Tinimomys are removed from the Paromomyidae and transferred to the Microsyopidae. The Plesiadapiformes are classified in three groups which may be differentiated on incisor and molar structure: Plesiadapoidea (Plesiadapidae, Carpolestidae, and Saxonellidae), Microsyopidae, and Paromomyidae. The Paromomyidae, Microsyopidae (and its two subfamilies), and several genera are rediagnosed in the light of new comparative evidence.

Original languageEnglish (US)
Pages (from-to)109-138
Number of pages30
JournalFolia Primatologica
Volume26
Issue number2
DOIs
StatePublished - Jan 1 1976

Keywords

  • Archaic primates
  • Ignacius
  • Microsyopidae
  • Microsyops
  • Paromomyidae
  • Phenacolemur
  • Plesiadapiformes
  • Plesiadapoidea
  • Tinimomys

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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