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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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Microfossils-to-GO! Discovering Devonian Microfossils Charlie Drewes Ecology, Evolution & Organismal BiologyIowa State University, Ames IA
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)
CONTENT THEMES:Evolution & Biodiversity Paleontology COURSES & CURRICULA:General & Advanced Biology Geology & Earth Science LEVEL:HS or college
440-350 MYA 290-200 MYA 140-65 MYA 1.8-0 MYA
DEVONIAN “the age of the fishes”
DEVONIAN “the age of the fishes”
Rockford DEVONIANFossil Deposits in Iowa FROM: http://www.paleoportal.org/time_space/time_space.php
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▼ ▼ small-sized granules andmicrofossils ▼▼ ▼▼
p. 3 Microfossils & Accessory Tools
p. 5 Microfossil Spoon
p. 5 Microfossil Sorting Platform
p. 5 Microfossil Widget
p. 3 Transferring Microfossils
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
BRYOZOANS living freshwater bryozoan
SCOLECODONTS annelid jaws
OSTRACODS seed shrimpcrustacean living freshwater ostracod
CONODONTS hypothetical conodont animal
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
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/