A new species of mioeuoticus (lorisiformes, primates) from the early middle miocene of Kenya

Yutaka Kunimatsu, Hiroshi Tsujikawa, Masato Nakatsukasa, Daisuke Shimizu, Naomichi Ogihara, Yasuhiro Kikuchi, Yoshihiko Nakano, Tomo Takano, Naoki Morimoto, Hidemi Ishida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We here describe a prosimian specimen discovered from the early Middle Miocene (~15 Ma) of Nachola, northern Kenya. It is a right maxilla that preserves P4-M3, and is assigned to a new species of the Miocene lorisid genus Mioeuoticus. Previously, Mioeuoticus was known from the Early Miocene of East Africa. The Nachola specimen is therefore the first discovery of this genus from the Middle Miocene. The presence of a new lorisid species in the Nachola fauna indicates a forested paleoenvironment for this locality, consistent with previously known evidence including the abundance of large-bodied hominoid fossils (Nacholapithecus kerioi), the dominance of browsers among the herbivore fauna, and the presence of plenty of petrified wood.

Original languageEnglish
Pages (from-to)59-65
Number of pages7
JournalAnthropological Science
Issue number2
Publication statusPublished - 2017


  • East Africa
  • Lorisidae
  • Middle miocene
  • Mioeuoticus
  • Prosimians

ASJC Scopus subject areas

  • Anthropology


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