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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Holocene Tortugas Islands microfossil sample collection Superb & mystery Species

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Pleistocene Foraminifera Mississippi Mud Lump microfossil matrix collection

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Devonian Rockhouse Fm brachiopod ostracod microfossil matrix collection 8 SITES!

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Ordovician conodont shark fish microfossil matrix sample Harding Sandstone

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Eocene foraminifera ostracod microfossil matrix GOBAIN France SUPERB New

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Cretaceous Lower Weald Clay ostracod fish scale microfossil matrix England NEW!

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Holocene foraminifera microfossil sample Japan Superb Star Sand with SEM photo!

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