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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Eocene Microfossil slide IDENTIFIED bivalves snails foraminifera 49 fossil types

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Microfossil slide IDENTIFIED UK coastal invertebrates bivalves snails 45 types

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End Date: Saturday Mar-14-2020 1:16:58 EST
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Carboniferous Pennsylvanian microfossil matrix collection 10 sites fossil rich

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Jurassic microfossil matrix collection 9 sites ostracods foraminifera fossils

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Devonian conodont microfossil matrix sample collection 6 sites fossil rich

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End Date: Wednesday Mar-4-2020 9:24:22 EST
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Cretaceous microfossil matrix collection 11 sites Foraminifera Ostracods fossils

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Devonian Birdsong Fm brachiopod ostracod microfossil matrix collection 11 sites

AU $49.27
End Date: Wednesday Mar-4-2020 9:18:43 EST
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