Sphenophyllum is an extinct genus of plants in the broader order Sphenophyllales. It is also part of the Equisetopsida class that includes our extant horsetails.
Found in Grand Ledge, Michigan.
Science Tuesday: Botany (May 2017) Science Tuesdays is an ongoing educational experience, offering science programming based on changing themes each month. Science Tuesdays take place throughout the day on Tuesdays at the Museum and include a variety of activities and interactive displays.