Columns and domes range in width from 5 to 40 mm and in height from 10 to 60 mm. Stromatolite macrostructures typically grade from domal at the base to columnar or psuedocolumnar towards the distal portions. Laminae are smooth in the proximal portions of the stromatolite but tend to be wrinkled toward the distal portion. There is a high degree of inheritance and stacking is continuous between the laminae of each column.
Distinct laminae are traceable between individual columns and domes.
Petrographically, the carbonate stromatolites contain Girvanella that range in length from 0.5 to 2.0 mm. Micritized spar-filled serpulids are found between the laminae and in the intercolumnar fill of the stromatolites. The diameter of the serpulids ranges from 0.425 to 0.5 mm. 3-D reconstruction, mesostructural examination, and quantitative stromatolitology suggests that these stromatolites are not of the group Gouldina as previously classified. A comparison with other known lacustrine stromatolites in coal sequences suggests that stromatolites of the Morien Group bear some resemblance to the Permian stromatolites of the Untersee of Lake Constance, Germany.