Ancient Species -
Algae

The term "algae" refers to organisms which are aquatic and which manufacture their own food by "capturing" light energy to manufacture sugars. It includes photosynthetic bacteria (cyanobacteria), chromista ("coloured algae"), and rhodophyta ("red algae"), as well as "green algae" - none of which are closely related.

Some algae secrete silica or calcium carbonate and fossil records of such  algae date back to the Proterozoic Period about 1,250 years ago. Limestone deposits which originated as coral reefs usually contain large amounts of calcium carbonate from algae secretions. In some cases, algae contribute more to the building of coral reefs than coral do.

Green algae

 

Algae fossils now available (at eBay):

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Algae Limescale Fossil Oligocene Stampien With

AU $3.27
End Date: Tuesday Mar-24-2020 23:06:49 EST
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Algae Limescale Fossil Miocene Burdigalian

AU $1.64
End Date: Monday Mar-16-2020 22:41:37 EST
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Algae Limescale Fossil Oligocene Stampien T

AU $3.27
End Date: Sunday Mar-15-2020 23:07:54 EST
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Algae Limescale Fossil Oligocene Stampien P

AU $3.27
End Date: Saturday Mar-21-2020 23:21:54 EST
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Algae Limescale Fossil Oligocene Stampien R

AU $3.27
End Date: Wednesday Mar-18-2020 3:32:53 EST
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Algae Limescale Fossil Oligocene Stampien E

AU $3.27
End Date: Wednesday Mar-18-2020 3:32:53 EST
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Algae Limescale Fossil Oligocene Rupelien M.

AU $3.27
End Date: Friday Mar-13-2020 4:20:47 EST
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