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Oligocene
diversification of platyrrhines and catarrhine
Parapithecids are ancestral to
all haplorrhines (most similar to platyrrhines)
Platyrrhine (dental formula, contact, ear, new world)
2.1.3.3
Zygomatic parietal contact
No bony ear tube
Rafting hypothesis
Propliopithecids are ancestral to
catarrhines
Catarrhine (dental formula, contact, ear)
2.1.2.3
Frontal sphenoid contact
Bony ear tube
Example of Parapithecidae
Apidium
Example of Propliopithecidae (diet, crest, activity pattern, locomotion)
Aegyptopithecus
Frugivorous, sexually dimorphic sagittal crest, diurnal, arboreal