Anthropology5_Early_Human_Evolution

Anthropology5_Early_Human_Evolution - Anthro5 18:04...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Anthro 5 18:04 Early Human Evolution (Chimp-human divergence) o A. Taxonomic position o B. Ecological context o C. timing o D. Derived Traits o E. Cast of characters (who’s who in the pliopleistocene) Cast of Characters We might usually think about “adaptive grades” o 1. Pre-Australopithecus forms (6-4mya) o 2. Australopithecines: Australopithecus  (4-2mya) Paranthropus  (2.5-1ma) o 3.  Homo  (2 ma-present) Early Human Evolution (Chimp/human divergence) o A. Taxonomic position? Most texts differentiate between nonhuman apes (“pongids”) and  human apes (“hominids”) o B. Ecological context During the Miocene (25-7mya) the earth’s climate cooled Polar ice caps and mountain glaciers formed. (Globe had been ice free  for many 10’s of millions of years prior) Cooling had multiple effects in Africa 1. Overall decrease in rainfall
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. Rainfall became more seasonal
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

Anthropology5_Early_Human_Evolution - Anthro5 18:04...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online