I've combined these two as the themes for these posts came to me after my visit and the images I've taken are thin on the concept after the Cenozoic Era. However, for Act 2 "Set In Stone" I have a most extraordinary artifact.
Fossils, true fossils almost always depend upon the presence of bones. Something essentially composed of minerals that can be replaced in the right conditions with other more resilient minerals and thus endure over millions of years. The drawback to this is that MOST of life on this planet does not have a skeletal structure that is sufficiently hard enough to become a fossil. In his book, "A Short History of Nearly Everything" Bill Bryson makes several excellent assertions about the nature and reality of knowing our planet's prehistoric realities. Here are some of my favorites:
1) Our very best estimates suggest that only one out of every 1,000,000,000 bones ever even becomes a fossil.
2) If the population of the United States is 330,000,000 people, and we each have 206 bones in our bodies, chances are that only 61 of all of our bones will ever even become a fossil.
3) 99.9+ percent of all living organisms simply decay upon dying, and even those who may take longer due to extenuating circumstances (think ritual burial) will be gone after 10 to 20 thousand years.
4) The chances that a bone fossilizes is even obscured by the chance that a human being will discover it.
On the Dioramas of which there were only two...
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