I did not know that they are the oldest fossils on Earth. If scientists disagree about the definition, then is there more information to be found about these fossil?
I did not know that stromatolites were the oldest fossil on earth. And some scientists think that they were formed from green and blue algae but that is just one theory. This is a helpful interesting website that will help with our geology unit.
Great find Christine. this really relates to what we have been learning in science class. Some of the facts that i had learned while reading the sections, even though I had not read all of them because, I was pressed on time, that stromatolites are considered one of the earths oldest fossils besides phylogenetic determination of conserved nucleic acid sequences. Stromatolites are basically considered portals to the knowledge of earths past life, into the deep time of the earths existence, the evolution of different species that are thriving in the modern times. I didn't know that scientist often disagreed on how to classify stromatolites. Some believe that it is a laminated rock that is formed by the growth of blue or green algae.