Disorientation of Paleozoic hemispherical corals and stromatoporoids

The size distribution and orientation of massive hemispherical tabulate corals and hemispherical stromatoporoids from the Fossil Hill and Manitoulin Formations on Manitoulin Island (Niagaran and Alexandrian, Ontario), and of hemispherical stromatoporoids in the Flume and Upper Cairn Members of the Miette reef complex (Frasnian, Alberta) and the Jamesville Member of the Manlius Formation (Helderbergian, New York), was determined. In all five …