Illinois Bryozoan Colony Location Guide

Bryozoan Colony is a realistic Illinois fossil profile built around lace-like or twiggy colonial filter feeder common in marine limestone. In this state, success usually comes from learning Silurian and Devonian limestones, shale cuts, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.