A fossil is any remains or trace of past life.
Usually, scientists consider anything >10,000 years old to be a
Last time we observed fossil
assemblages. We were able to tell several stories by examining
the fossil assemblage. We could:
Identify some of the fossils.
Recognize a high level of diversity - richness in numbers of
species. From that, we inferred that the assemblage was from
a very productive area.
Infer about past climates.
Suggest the depositional environment based upon the quality
Propose the level of water energy involved in the deposition
- e.g. The deposition occured in an area of low energy because
many of the fossils were well preserved and very fragile.
Stories from a Single Fossil
Stories from Trace Fossils
Activity: Interpreting Tracks
Return to: Lines of Evidence for Past Change
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