A rare Cryptozoon stromatolite fossil from the Lower Ordovician Period (450 million years old), discovered in Oconto County, Wisconsin, USA. This ancient cyanobacteria structure played a crucial role in Earth's early ecosystem, forming some of the first reefs. A genuine, hand-selected specimen perfect for fossil collectors, educators, and natural history enthusiasts.

Each Cryptozoon fossil has unique formations that showcase the natural layering process that occurred over millions of years. This makes it a valuable addition to any fossil collection, a great educational piece, or a unique gift for a geology enthusiast.

• 100% Genuine Specimen – All of our fossils are authentic and come with a Certificate of Authenticity.
• Photos show the exact specimen you will receive – No stock images!
• Scale cube = 1cm – For full sizing, please refer to the provided photos.
• A carefully chosen specimen – Selected for its scientific and aesthetic appeal.

A must-have for fossil collectors, natural history lovers, and anyone fascinated by Earth's ancient past!