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Discovering Devonian Microfossils

Microfossils-to-GO!. Discovering Devonian Microfossils. Charlie Drewes Ecology, Evolution & Organismal Biology Iowa State University, Ames IA. What are microfossils?.  fossilized remains (plant, animal, protozoan)

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Discovering Devonian Microfossils

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  1. Microfossils-to-GO! Discovering Devonian Microfossils Charlie Drewes Ecology, Evolution & Organismal BiologyIowa State University, Ames IA

  2. What are microfossils?  fossilized remains(plant, animal, protozoan) derive from hard parts(exoskeleton, endoskeleton, covering, shell, teeth) less than 1-2 mm in size(> 0.001 mm) imbedded in rock or loose particles research utility(paleoenvironmental reconstruction, biostratigraphy, paleooceanography)  educational use(hands-on, inquiry, discovery)

  3. CONTENT THEMES:Evolution & Biodiversity Paleontology COURSES & CURRICULA:General & Advanced Biology Geology & Earth Science LEVEL:HS or college

  4.  440-350 MYA 290-200 MYA  140-65 MYA 1.8-0 MYA

  5. DEVONIAN “the age of the fishes”

  6. DEVONIAN “the age of the fishes”

  7. Rockford  DEVONIANFossil Deposits in Iowa FROM: http://www.paleoportal.org/time_space/time_space.php

  8. x I save

  9. ▼ ▼ small-sized granules andmicrofossils ▼▼ ▼▼

  10. p. 3 Microfossils & Accessory Tools

  11. p. 5 Microfossil Spoon

  12. p. 5 Microfossil Sorting Platform

  13. p. 5 Microfossil Widget

  14. p. 3 Transferring Microfossils

  15. p. 4 Microfossil Category Checklist █Foraminifera(multi-chambered shell) █Charophyte algae(oogonia) █Sponge(spicules) █Bryozoa(branching or fenestrated tubes) █Snail(coiled shell) █Tentaculite(long, conical shell) █Polychaete(jaws) █Ostracod(bivalve carapace) █Brachiopod(articulating shells) █Crinoid(articulating, internal ossicles) █Conodont animal(jaw apparatus) █miscellaneous spines from unknown origin

  16. FORAMINIFERANS

  17. CHAROPHYTES - oogonia

  18. SPONGE SPICULES

  19. BRYOZOANS living freshwater bryozoan

  20. GASTROPODS - snails

  21. TENTACULITES

  22. SCOLECODONTS annelid jaws

  23. OSTRACODS seed shrimpcrustacean living freshwater ostracod

  24. BRACHIOPODSlamp shells

  25. CRINOIDSsea liliesechinoderms

  26. CONODONTS hypothetical conodont animal

  27. unidentified spines, etc

  28. from:Microfossils-to-GO ! A hands-on workshop presented by C. Drewes at 2004National Association of Biology Teachers Convention, Chicago, ILWORKSHOP & WRITE-UP DESCRIPTION: Emphasis on collecting, cleaning, handling, and visualizing Devonian microfossils. Free samples of microfossils, tools for handling, and CD with macro- and micro-fossil image galleries

  29. TO REQUEST COPY OF STUDENT LAB WRITE-UP ON MICROFOSSILS, please contact C. Drewes at:PHONE: (515)294-8061 EMAIL: cdrewes@iastate.edu MAIL:  Dr. Charlie Drewes,  Rm 503 Science II Bldg (EEOB), Iowa State University  Ames, IA   50011 WEB: http://www.eeob.iastate.edu/faculty/DrewesC/htdocs/

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