Ancient Species -
Cyanobacteria

Cyanobacteria, or "blue-green algae", are bacteria which live in water. They often grow in colonies large enough to be seen. Cyanobacteria are photosynthetic, that is, they "capture" energy from sunlight and release oxygen. They are responsible for generating the oxygen-rich atmosphere on which all animal life depends.

At the beginning of the Cambrian Period (about 590 million years ago), some cyanobacteria began to take up residence within certain eukaryote cells. This eventually led to the development of plants - the chloroplast with which plants make food for themselves is actually a cyanobacteria living within the plant's cells.

Cyanobacteria sometimes form a mat which traps sediment and secretions of calcium carbonate. These mats can form into large layered structures called stomatolites, if they are dome-shaped, or ancolites, if they are round.

Fossil stromatolites have been found dating far back into the Archaean Period (3,800 to 2,600 years ago). The oldest known fossils are microfossils of cyanobacteria, dating from 3,500 million years ago, found in Western Australia. Stromatolites are still being formed today at Shark Bay in Western Australia.

 

Fossils now available (at eBay):

Click on an item to view details and, if you wish, bid.

Petrified Wood, Chinchilla QLD

AU $3.99 (0 Bids)
End Date: Tuesday Apr-30-2019 7:36:56 EST
Buy It Now for only: AU $5.50
Buy It Now | Bid now | Add to watch list

Trilobite Tail Fossil Specimens Fossils Science Teaching Stone Collection AU

AU $8.79
End Date: Wednesday May-22-2019 17:34:45 EST
Buy It Now for only: AU $8.79
Buy It Now | Add to watch list

ORNITHOPOD DINOSAUR TRACK Lower Jurassic fossil cast 190 Million Years

AU $18.50 (0 Bids)
End Date: Saturday Apr-27-2019 20:03:00 EST
Bid now | Add to watch list

Serrated Megalodon Shark Tooth Fossil 3.8" 10cm from Georgia/Florida USA

AU $200.00
End Date: Monday May-20-2019 18:56:37 EST
Buy It Now for only: AU $200.00
Buy It Now | Add to watch list

Glossopteris sp., Australian Plant Leaf Fossil Dunnedoo, NSW, 259g

AU $29.99
End Date: Saturday May-18-2019 16:54:51 EST
Buy It Now for only: AU $29.99
Buy It Now | Add to watch list

Acasta Gneiss, sphere, 4.2 Bill years, Canada (5.6)

AU $85.00
End Date: Saturday May-18-2019 12:37:22 EST
Buy It Now for only: AU $85.00
Buy It Now | Add to watch list





FAQs | About Us | Contact

Copyright © Peter Thorogood

Web design by Peter Thorogood