[ERTH 2401] - Midterm Exam Guide - Comprehensive Notes for the exam (36 pages long!)
5 Oct 2016
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Cryolophosaurus found somewhere cold; antarctica which does not have the environment to support any reptile life now indicating there was a much warmer climate before during the dinosaur age. Slide 1; print time scale for geological period. Age of the earth is 4. 5 billion years old. Changes to earth"s geography; 1 supercontinent, 1 large ocean this allows migration to continue along the entire world b/c there are no oceans to stop migration routes like there is now. Blue line sea level; which has fluctuated tremendously during the geological time scale; when sea level is low there is more land, when sea level is high the continents are flooded. Glaciers and ice caps exist now there were time where no ice existed at all; high sea levels and flooded continents. Mass extinctions there were many mass extinctions not just dinosaurs. The evolution of life was affected by all see factors at the different geological times.
