BRYOZOANS FOR SALE

Bryozoans are coral-like, aquatic colonial animals of the phylum Bryozoa that first appeared in the fossil record about 480 million years ago in the Ordovician Period. Today, about 4,000 species of bryozoans are living in the world's waters, and over 15,000 fossil species have been identified. Their community shells can take the form of fans, tubes, and even spirals.