4.03.06 L69

4.03.06 L69 - April 3 2006 Lecture 69 Evolution Development...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
April 3, 2006 Lecture 69: Evolution, Development, and Diversity Figuring out times on a phylogenetic tree radioactive dating relative dating Continents Split up and regroup on a regular basis Called a Wilson Cycle Scale First fossils, 3.6bya Accumulating oxygen 2.9-2.2 bya 2.2 bya – 1 st  eulkaryotes 1.8 bya – ozone develops 1.4 bya – Modern Eukaryotes 550 mya – Cambrian Explosion (when most plants, animals, and fungi evolved.) KT Extinction (Asteroid)5 PT Extinction Appearance of Multicellular fossils Paleozoic, Mesozoic, Cenozoic
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/11/2008 for the course BIO G 101 taught by Professor Gilbert,c. during the Fall '07 term at Cornell.

Page1 / 2

4.03.06 L69 - April 3 2006 Lecture 69 Evolution Development...

This preview shows document pages 1 - 2. Sign up to view the full document.

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