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6-8 1 9-12 1 elementary school fossil 1 geology high school 1 iowa 1 more ...
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This filmstrip and accompanying text were discovered in the archives of the Iowa Geological Survey in early 2008. A suitable filmstrip projector was not available. The filmstrip itself, believed to date from circa-1971-72, was deteriorated (see below). The filmstrip was scanned and color restoration...
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