Dating rock layers fossils

To help students understand the development of the geologic time scale.

Also, to introduce students to the major time periods in earth's history, as well as to the role fossils play in helping us understand this history.

How did that arrowhead end up underground in the first place?

The arrowhead, which was previously buried in the soil popped to the surface.

Scientists now have accurate methods (see below ) for dating fossils.

methods rely on characteristic faunal and geological patterns to bracket the period when the fossil existed.

Archaeological geology as a science had to precede the proposal of evolution, as an understanding of the immense age of the earth is necessary to understand evolution.

Cuvier established amongst the scientific community the fact of extinction.

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