Approx. no.of years ago- 65,000,000

Geological time period- Paleogene

What evolved- Primates


The first primates evolved around the same time that the dinosaurs died out. They eventually developed opposable thumbs, very useful for living in trees.

Other Branches- NO

Approx. no.of years ago- 47,000,000

Geological time period- Paleogene

What evolved- The newly publicized Darwinius was a transitional form between the prosimians (lemurs & tarsiers) and simians (monkeys & apes). By this point, primates had evolved forward-facing eyes.


Other Branches- lemurs, tarsiers years ago- 30,000,000

Geologic time period- Paleogene

What evoluted- Around this time, new world (South American) monkeys and old world (African) monkeys started evolving in different directions. Aegyptopithicus is one the earliest known old world monkeys


Other Branches- new world monkeys years ago- 27,000,000

Geologic time period- Paleogene

What evoluted- Some old world monkeys eventually evolved ape-like qualities such as stronger shoulders, larger brains, better vision, and the lack of a tail. Proconsul is one of the earliest known ape-like primates.


Other Branches- old world monkeys, gibbons

Approx. no.of years ago- 13,000,000

Geological time period- Neogene

What evolved- The recently publicized Pierolapithecus might be the common ancestor of all great apes. The great apes are all larger, stronger, more intelligent, and more social than other primates.


Other Branches- orangutans, gorillas years ago- 7,000,000

Geological time period- Neogene

What evolved-Sahelanthropus, nicknamed "Toumai", may represent the last ancestor common ancestor between chimpanzees and humans. At this point, the layrnx evolved, which would eventually allow for more complex speech.

Sahelanthropus Ttchadensis

Other Branches- chimpanzees, bonobos years ago-4,400,000

Geological time period-Neogene

What evolved-It is believed that the jungle started to get cooler and dryer around this time and that this forced some apes to spend more time on the ground, eventually leading to bipedalism. One of the first species to walk on two feet was Australopithecus Afarensis (nicknamed "Lucy").

Australopithicus Afarensis

Other Branches-Australopithicenes, Paranthropus years ago-2,500,000

Geologic time period-Quaternary

What evolved-The earliest human species, homo habilis had larger brains than its predecessors, ate more meat, and started using the first stone tools

Homo Habilis

Other branches-Homo Erectus, Homo Floresiensis? years-1,700,000

Geologic time period- Quatenary

what evolved- Homo Ergaster had shorter arms (like modern humans), less body hair and the ability to use fire. They lived entirely on the ground and developed greater cooperation between males and females. Humans also left Africa for the first time during this period.

Homo Ergaster

Other branches-NONE

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