1. Original Preservation Natural mummification by drying

2. Unaltered Preservation Amber Deposits

3. Unaltered Preservation Bison and Woolly Mammoth Skin and Hair

4. Permineralization/Petrification Common preservation in wood and bone Which image is the altered/permineralized bone?

5. Petrification Petrified wood from the Petrified Forest National Park in Arizona

6. Replacement Silica replacement of carbonate shell What kind of animal is this?

7. Replacement Note new mineral that has replaced carbonate shell What kind of fossil animal is shown?

8. Carbonization Common in plants and animal soft parts

9. Molds and Casts What kind of animal is shown by this fossil?

10. Molds/Impressions What animals are shown by the impressions?

11. Trace Fossils Burrows Indicate movement, activity of organism

12. Trace Fossils Coprolites

13. Trace Fossils Footprints, trackways Note molds and casts