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The presence of maxillary fourth molar in the Sri Lankan toque monkey ( Macaca sinica aurifrons )
Author(s) -
Gabadage Dinesh E.,
Rodrigo Kalangi,
ManamendraArachchi Kelum N.,
Premarathne Sonali Rangika
Publication year - 2021
Publication title -
journal of medical primatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 42
eISSN - 1600-0684
pISSN - 0047-2565
DOI - 10.1111/jmp.12527
Subject(s) - molar , macaque , sri lanka , supernumerary , osteology , biology , primate , anatomy , orthodontics , medicine , geography , ecology , tanzania , environmental planning
We describe the presence of fourth molar teeth in the upper jaw of a subspecies ( Macaca sinica aurifrons ) of the endemic toque macaque of Sri Lanka. Compared to the first three molars, supernumerary ones were smaller by more than 50%, showed four cuspids in the crowns, and had three roots. This observation contributes to knowledge of orthodontic anomalies presence in primate populations while spotlighting the importance of osteological observation.