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History of the Earth Image Bank
- Southwest US Stratigraphy
- Grand Canyon cross section
- Grand Stairstep cross section
- Rock Unit Correlation in a small area
- Diagram of Index Fossils
- Trilobite Anatomy
- Trilobite's major segments
- Trilobite's Three Namesake Lobes
- Trilobite Predator
Images courtesy of USGS and K. Pitcher's trilobite Site