8.2" Polished, Miocene Stromatolite (Oncholites) Fossil - New Zealand

This is a well-defined dome of a stromatolite colony containing round cyanobacteria balls with numerous Collenia-type fingers. It was collected from New Zealand and is Miocene in age, or approximately 30 million years old. The detail of this stromatolite formation is exceptional.

Comes with a display stand.

Stromatolites are the layered trace fossils of microbial life, primarily cyanobacteria. Some of them date back an astounding 3.4 billion years, making them the oldest record of life on planet Earth. Stromatolites and Microbialites were typically formed in shallow water by the growth of layer upon layer of cyanobacteria, a single-celled, photosynthesizing microbe. These layers often form very beautiful, and colorful banded structures in the rock.

These oxygen producing cyanobacteria were so simple they lacked DNA packaging nucleus, but were responsible for possibly the largest changes the earth has undergone. They were the only major source of atmospheric oxygen critical for the development of more complex life.
Oncholites sp.
South Island, New Zealand
8.2 x 6.5", .75" thick.
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.