ANT-2000 Lecture Notes - Lecture 1: Lake Baringo, Ape, Pierolapithecus

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24 Oct 2016
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October 24th, 2016
The Fossil Record of Human Evolution
Hominoids showed up in east Africa in the Miocene Epoch
- dental apes
- all had Y5 molars
- quadrupedal (not suspensory)
- There was evidence of suspension in one 20.6 million year-old Miocene hominoid
from Uganda: The morotopithecus
Pierolapithecus catalauncicus
- Broad, flat torso
- Scapula on back
- Stiff lower back
- Flexible wrists
- Found near Barcelona, Spain
- Could be a common ancestor of large apes (including humans)
Hominins
- A member of the Tribe Hominini
- Human ancestors of Pliocene-Pleistocene after the split from chimpanzees
- We have a great fossil record for hominins
- Less than 20 species of hominins are widely recognized
Subtribes of the Hominini
- Australopithecina
- Hominina
Chimpanzees
- Chimpanzee fossils were unknown until 2005
- 5 fossil chimp teeth
- 500,000 years old
- near Lake Baringo, Kenya
- there are few panin fossils for chimpanzees because they live in the tropics. When
an animal dies in the tropics the organic material gets recycled and there is nothing
left behind.
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