Figure 2. Simulations of existent helical colony morphologies in fossil and living bryozoans. The polygons in the morphospace illustrate the measurement field of measurements taken from: (1) Paleozoic Archimedes laxus, (2) Paleozoic basinal Archimedes ecomorphs, (3) Paleozoic back-shoal Archimedes ecomorphs, (4) living Bugula colonies, except B. plumosa colonies, (5) living Bugula plumosa, (6) Eocene Crisidmonea archimediformis, and (7) living Retiflustra cornea. Data polygons from McKinney and McGhee (2003).