What is the Evolutionary History of the Primates?. Cenozoic Timescale. What is the Evolutionary History of the Primates?. 1. EOCENE 54-38 mya Prosimian Radiations 2 exs: Smilodectes, Necrolemur 2. OLIGOCENE 38-23 mya Monkey Radiations 2 exs: Apidium, Aegyptopithecus
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1. EOCENE 54-38 mya
2 exs: Smilodectes, Necrolemur
2. OLIGOCENE 38-23 mya
2 exs: Apidium, Aegyptopithecus
3. MIOCENE 23-5 mya
2 exs: Sivapithecus, Gigantopithecus, Sahelanthropus
Last Common Ancestor:lived sometime in the late Cretaceous when dinosaurs still dominant land-dwelling life form[genetic evidence & diversity of primates from the Eocene and later]
If the last common ancestor of living primates did indeed live between 80 and 90 mya, the primate lineage that we are descended from would be pushed back more than 30 million years!
New discoveries from Eocene of China reveal an unexpected diversity of early primates
1. Smilodectes (North America)
2. Necrolemur (Europe)
Very similar to the modern tarsier. Its features included: