Jamaican monkey
Harold Anthony is responsible for many species descriptions of Caribbean taxa during the 1920s[citation needed] and his field notes record the discovery of the monkey material: “January 17 – Spent all day digging in the long mile cave and secured some good bones.[3] The small mandible has a dental formula of 2 incisors, 1 canine, 3 premolars and 2 molars – a departure from the vast majority of living platyrrhines (with the notable exception of the callitrichines).The postcranial remains discovered by Anthony in the 1920s were eventually described by MacPhee and Fleagle[4] who attributed the femur, os coxae, and tibia to the order Primates.In the 1990s, several expeditions to Jamaican cave sites resulted in the recovery of additional cranial and postcranial material attributed to Xenothrix, including a partial lower face containing the palate with left and right P4-M2, most of the maxilla and parts of the sphenoid.DNA analysis indicates that the species is a type of titi monkey, sister to the recently recognized northern South American genus Cheracebus, that colonized Jamaica around 11 million years ago.