Bryozoa; Massive Form
Species: P. collum
Author Citation (Canu & Bassler, 1920)
Geological Time Scale
Castle Hayne Formation
Collector: Don Rideout
Date Collected: 12/20/2016
Acquired by: Field Collection
Martin Marieta Quarry Castle Hayne
New Hanover County
This is a common find at this particular quarry, this one P. collum has encrusted what appears to be a Chlamys cookei bivalve.
After deciding to add this bryozoa, I had to do a lot of research. What I found is that I really knew nothing about bryozoans. I had always believed this to be an encrusting type bryozoa. Well, I found this species is one of the massive type byozoans. It initially encrusts the host, but then it builds layer upon layer, hence making it a massive form.