BRYOZOA 2: SURFACE CRUSTS AND FOLDED FORMS
Phylum Bryozoa Fistulipora
Some bryozoans form a thin crust on top of shells or rocks. These can be difficult to recognize. But other colonies grow massive folded forms as in the photo. Fistulipora is one of these. Use a magnifier or look very closely to see the thousands of tiny dots or zooecia on the white outer surfaces of this common Kaibab bryozoan.