CHAPTER 8

or CHAPTER 108: THE LAST FEW HUNDRED-MILLION YEARS (30 – 300 MYA)

An hourglass 10,000 feet tall would last 100 million years. That’s the size of a typical volcano. On this time scale, volcanic greenhouse gases brought life to its nearest brush with utter extinction. Click here for image attributions. 1

I. Introduction And Geological Time

II.  The Mesozoic World

III.  Mammals and Primates

IV.  Chapter 8 Summary

V.  Human Ancestor Gallery

V.  Chapter 8 Margin Notes (Blog Posts)

  1. Hourglass image from https://www.uokpl.rs/rsmax/hTxxJhR/ (accessed, saved, and archived 9/20/20).  Volcano image by EmmanualCordoliani, CC BY 4.0 license (accessed, saved, and archived 11/21/20).  Gasmask image by Clker-Free-Vector-Images, Pixabay License (accessed, saved, and archived 11/21/20).
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