Czaja Precambrian Paleobiology Lab
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Microfossil Lab

Images of Modern Microbes and Microfossils for Earth's Early Biosphere Lab


Modern microbes

 Collection site of modern microbes (hover over images for captions)

Modern filamentous and coccoidal cyanobacteria 

Note, these are not the same ones shown in lab but they are similar. (hover over images for captions)

Sample 1. Angmaat Formation, ~1 billion years old, Arctic Canada

Explore this gigapan image of a thin section containing hundreds to thousands of microfossils

Sample 2. Gunflint Iron Formation, 1.88 billion years old, Ontario Canada

Explore this gigapan image of a thin section containing lots of microfossils, though most are too small to see

Thin section image of sample SCHDE-30-A2

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Images from three areas at increasing depth taken with 40x objective lens


Sample 3. Gamohaan Formation, 2.52 billion years old, South Africa

Comes from a sample similar to this small domal stromatolite sample (#5a) you saw two weeks ago in lab.

Stromatolite specimen

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Image of entire thin section GAM-13-1E

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​Magnified view of lower portion of thin section (zoom in on the layer marked with the yellow star)

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​Sample 4. Tsineng Member of the Gamohaan Formation, 2.52 billion years old, South Africa (outcrop)

Image of whole thin section TSIN-14-L2-1-4A

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​Sample 5. Tsineng Member of the Gamohaan Formation, 2.52 billion years old, South Africa (Drill core)

Image of thin section WB-899.8B. Note the microbial layering

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Images at increasing depth taken with 40x objective lens

Images at increasing depth taken with 100x objective lens

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