prosimian
noun
pro·sim·i·an prō-ˈsi-mē-ən 
: any of a suborder (Prosimii) of lower primates (such as lemurs and lorises)
Note: The suborder Prosimii is now infrequently used in taxonomic classification. Most species, with the exception of the tarsiers, formerly grouped in the suborder Prosimii are now classified in the suborder Strepsirrhini.
prosimian adjective
Example Sentences
Recent Examples on the Web Lemurs represent an evolutionary path not taken, prosimians that never evolved into anything else. 
Tom Downey, WSJ, 18 July 2018
Tom Downey, WSJ, 18 July 2018 Word History
Etymology
New Latin Prosimii, from pro- entry 1 + Latin simia ape — more at simian
First Known Use
1873, in the meaning defined above