Primate Notes

Tree shrews are arboreal insectivores and likely primate ancestor

Tarsier is a transitional species between sub-orders that is similar to the loris, it has the largest orbit to brain ratio

Papio vs Macaca
Papio has lower P1 anteriorly projected

• Structures

  • Tooth-Comb

    • Procumbent incisors found in ring-tailed and flying lemurs used for grooming

  • Post-Orbital Bar

    • Composed of jugal and frontal processes

    • All primates have it aside from flying lemurs

  • Temporal Fossa

    • Visible through the orbital

Haplorrhines have bunodont teeth aside from baboons that are doubly lophodont
Haplorrhines also have a post-orbital plate visible through the orbits beginning with the tarsiers