Jack Horner begins by describing how the age of a fossil can be determined, through the surrounding soil and with scientific equipment. Jack and other scientists are looking for the ancestor of all dinosaurs. Multiple mass extinctions, where meteors struck near Hell Creek formation (where they are digging) make finding fossils in the area more difficult. The way it can be determined where a meteor hit is by analyzing the soil for high Iridium levels. I believe that, so far, the author of this book is not focusing on "How to Build a Dinosaur" and more on how to find the fossil of a dinosaur. But still, this book is interesting and i will continue to rad it.
page 20 - page 40
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