This vegetation is growing along the High Falls Ash, produced as a result of relatively nearby volcanic activity during the Ordovician. Students from the University of Cincinnati observing layers of the Denley Formation. The very rhythmic layers observed here lead some to believe that climatic cyclicity may have been at least partly responsible for their deposition. An example of Isotelus maximus found in place in the Denley Formation. Isotelus lived in Ordovician times.
Some specimens are among the largest trilobites found in the world.
This guy probably ate mud directly from the sea floor. These overlying rocks have since been eroded away. These circular-shaped fossils are Prasopora bryozoa found in situ in the Sugar River Formation, part of the Trenton Group. These are some of the largest examples of this marine animal found anywhere in the world. Bryozoans are microscopic sea animals that live in colonial structures, feeding on microscopic organisms floating in the water.