Bryozoan Fossils
Bryozoan Fossils were the homes for many tiny colonial animals. The fossil that you see was the home of thousands of bryozoans. With a magnifying glass you can see tiny pits. Each pit was the home of one bryozoan. They live by filtering sea water for microscopic organisms. There are many different kinds of bryozoans. Lots are extinct but many are living today.
Learn more about bryozoan fossils