Upper Stage 4 (Redlichia cf. versabunda Zone).
The buildup is composed of a series of parallel erected, cylindrical columns that are 1.5–4 m high and 20–50 cm in diameters.
Abundant ooids and calcareous metazoan skeletons, associated with micritic sediments, fill the inter-framework spaces of the microbialite, forming a packstone fabric. The calcareous metazoan skeletons, including chancelloriid sclerites, trilobite fragments, and rare mollusk shells, are scattered in the matrix.

thrombolite-stromatolite complex was formed within an ecosystem lacking archaeocyaths but dominated by microbes (reef builders) and chancelloriids (reef dwellers).