I believe this fossil would be classified as a colonial coral or maybe a cluster of horn corals attached together. The Stumm book on Devon...

This Brevispirifer gregarius (Clapp, 1857) is almost a textbook example of a fossil specimen. Included with this posts ar...

This fossil brachiopod is one of the larger ones I have found from the Mississippian Period. It was found in Indiana and shows evidence o...