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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Oligocene Alabama foraminifera microfossil fossil matrix 3 LARGE vials teaching

AU $27.34
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Ordovician 12 microfossil matrix samples ostracod brachiopod crinoid USA locales

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Devonian Rockhouse brachiopod ostracod microfossil matrix collection 8 Vials

AU $45.56
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Microfossil microscope Matrix fossil Collection Cambrian - Holocene 165 samples

AU $637.87
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Pleistocene vertebrate microfossil collection Florida mammal fish reptile 19 sp

AU $82.01
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Pleistocene Foraminifera Mississippi Mud Lump microfossil matrix collection

AU $21.87
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Eocene Microfossil slide IDENTIFIED bivalves snails foraminifera 49 fossil types

AU $36.45
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