https://www2.palomar.edu/anthro/primate/prim_4.htm

Nose comparison of a New World monkey--the emperor tamarin (left) and an Old ... All Old World monkeys, apes, and humans share this 2.1.2.3 dental formula.

https://en.wikipedia.org/wiki/New_World_monkey

New World monkeys are the five families of primates that are found in the tropical regions of ... Platyrrhines also differ from Old World monkeys in that they have twelve premolars instead of eight; having a dental formula of 2.1.3.32.1.3.3 or ...

https://news.berkeley.edu/2016/07/11/changes-in-primate-teeth-linked-to-rise-of-monkeys/

Jul 11, 2016 ... Great ape and Old World monkey mandibles that were part of this study. ... The change in dentition suggests that monkeys took over a niche ...

https://primatesinc.com/oldworld_newworld/

Mar 4, 2016 ... New World monkeys are members of five different primate families ... New World monkeys have an additional premolar tooth in their mouths; ...

https://www.britannica.com/animal/New-World-monkey

New World monkey: Amazon River: Animal life: …forest are several species of ... teeth. species of apes. In primate: Teeth …premolars; primitive primates ...

https://www.britannica.com/animal/Old-World-monkey

Characteristically, the teeth of Old World monkeys have a function in the maintenance of social order within the group as well as an overtly offensive role; their ...

https://www.nature.com/scitable/knowledge/library/new-world-monkeys-148121150

The New World monkeys are a diverse group of small to medium sized arboreal ... Secondly, NWMs have three premolar teeth, while catarrhines have two.

https://skeletonmuseum.com/exhibits-okc/6/primates-monkey-apes.htm

They differ from old world monkeys in that they have more teeth, a shorter ear canal and different nose features. There are approximately 129 species of new ...

http://www.nhc.ed.ac.uk/index.php?page=493.504.508.511

The dental formulae of the two families differ from each other and from the dental formulae of Old World monkeys and apes. The formula for marmosets is I2/2; ...

http://www.chimpanzoo.org/lessons/dentition/tdent.pdf

classify and give the dental formulas for each of the following primates as either: primitive, prosimian, New World Monkey Old World Monkey,. Ape, or Human.