Final answer:
Understanding the distribution and geologic time periods of fossils, as shown through resources like the PaleoDB navigator, can inform where they may be found. Weathering can expose fossils, as seen with the fossilized tree and megafauna in California, and studying these finds contributes to our knowledge of Earth's history.
Step-by-step explanation:
The search for fossils and understanding their geologic time periods is a fascinating aspect of paleontology. For example, by utilizing the PaleoDB navigator to investigate fossil distribution in the Himalaya Mountains near the Nepal/China border, one can deduce that fossils were most abundantly deposited during specific geologic time periods. When looking at a map showing fossil locations such as Figure 10.2, with color-coded dots indicating geologic age and the size of the dot revealing the species abundance, it can provide valuable guidance on where interesting fossils may be discovered. In the case of the fossilized tree and megafauna in a California state park, weathering due to wind or water exposure led to their discovery. This highlights the importance of natural processes such as mudslides or volcanic ash in preserving and later uncovering these ancient treasures. Further, identifying fossils and their geologic context enhances our knowledge of the diversity and extinction of organisms throughout Earth's history.