Micropaleontology Course

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Presentation transcript:

Micropaleontology Course Micropaleontology is concerned with microfossils and nanofossils (the latter being smaller than 50 m), the study of which must, of necessity, be carried out using the light or electron microscope. These fossils are: 1-) The remains of unicellular and multicellular micro-organisms and 2) The dissociated elements and skeletal fragments of macro-organisms.

Objective of micropaleontology Study the fossils in terms of morphology, structure, chemical and mineralogical components. Classification: discover their origin and systematic affinities. Applications in oil exploration, biostratigraphy, palaeo-biology and paleoclimatology. Other environmental issues.

Microfossils Groups 1. Foraminifera Unicellular/ calcareous or agglutinated/ marine environments/ planktonic and benthonic/ heterotrophic. 2. Ostracods Multicellular/ calcareous or chitinous valves/ marine and fresh environments/ planktonic and benthonic/ heterotrophic. 3. Coccolithophora Unicellular/ autotrophic/ calcareous/ planktonic and benthonic/ marine and fresh environments. 4. Diatom Unicellular/ autotrophic/ siliceous/ planktonic/ mainly marine environments. 5. Radiolaria Unicellular/ heterotrophic/ siliceous/ planktonic/ marine environments. 6. Dinoflagellates Unicellular/ autotrophic or heterotrophic / cysts are preserved (organic, calcareous or siliceous) motile and non-motile stages/ marine and fresh environments.

Figures showing the microfossils groups