Ancient Species -
Bacteria

Aside from cyanobacteria, bacteria do not often leave fossil records. However, under certain conditions, bacterial cells can be replaced with minerals, usually pyrite or siderite. forming replicas of the bacteria cells. Some bacteria secrete iron-coated sheaths that sometimes fossilize. One group forms tiny crystals of iron oxide (magnetite) inside their cells. These magnetite crystals, a  few hundred millionths of an meter across, have been found in 2 billion year old rocks. They are the smallest known fossils.

  

Micofossils now available (at eBay):

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Carboniferous Pennsylvanian microfossil matrix collection 10 sites fossil rich

AU $45.28
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Jurassic microfossil matrix collection 9 sites ostracods foraminifera fossils

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End Date: Wednesday Sep-4-2019 8:26:55 EST
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Devonian conodont microfossil matrix sample collection 6 sites fossil rich

AU $45.28
End Date: Wednesday Sep-4-2019 8:24:22 EST
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Cretaceous microfossil matrix collection 11 sites Foraminifera Ostracods fossils

AU $45.28
End Date: Wednesday Sep-4-2019 8:21:50 EST
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Devonian Birdsong Fm brachiopod ostracod microfossil matrix collection 11 sites

AU $45.28
End Date: Wednesday Sep-4-2019 8:18:43 EST
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Holocene Tortugas Islands microfossil sample collection Superb & mystery Species

AU $29.57
End Date: Sunday Aug-25-2019 19:57:52 EST
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Pleistocene Foraminifera Mississippi Mud Lump microfossil matrix collection

AU $21.74
End Date: Monday Sep-16-2019 18:59:57 EST
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