Septarian is a mud concretion which formed on an ancient sea bed or floor. In very rare instances fossil remains of various ocean floor dwellers may be found inside the septarian. Theories vary as to what caused crystals to form inside. Scientists do agree that the process of formation is very unusual and complex. This specimen is approximately 50 - 70 million years old.
- Dimensions: 40 mm x 50 mm x 30 mm.
- Genuine fossil.
- This item includes an information card about the fossil.
- A certificate of authenticity is included with this item.