If your previous Geology course was Earth Science or Natural Disasters, you should read these sections: Definitions and illustrations of the principles of stratigraphy. Be sure to step through all the ...

Stratigraphic principles and careful reasoning can identify these particular footprints as 190 million years old, created by a prehistoric spider out for a stroll. Fossilized spider footprints ...

The Harris Matrix provided archaeologists with a means to view stratigraphic sequences of archaeological sites in a diagram. He published his Matrix and findings in The Principles of ...