1. By Mrs.Soheir Zaki Abdel-Fattah
Fossils
By Mrs.Soheir Zaki Abdel-Fattah

2. Fossils: traces and remains of an old living organisms in sedimentary rocks.

3. Why sedimentary rocks?

5. Traces & Remains

6. Types of fossils 1- complete body fossils. 2- mold 3- cast
Types of fossils 1- complete body fossils. 2- mold 3- cast. 4- petrified fossils.

7. 1- complete body fossils.

8. 2- mold

9. 3- cast

10. 4- petrified fossils.

11. Importance of fossils

12. Age determination of sedimentary rocks

13. Figuring out the paleoenvironment The past environment of an area during a given period of its history.

14. Studying evolution
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15. Petroleum exploration indicate presence of petroleum by microfossils