The Mazon Creek Nodules
For over a century paleontologists, both professional and amateur, have been collecting the Pennsylvanian Age plant and animal fossils of the Mazon Creek Area of northern Illinois. The general limits Read More …
Mineralogy of Dolostones
Unlike, Ohio’s Silurian dolostones, the dense limestones of the Bull Fork formation are virtually void of pockets. Most of the mineralization, at this locality, occurs when the hollowed out centers Read More …
Septarian Minerals of the Huron River
Ferroan dolomite crystals from this locality will occasionally show a multiple step growth habit. This habit has been seen on both straight and curved crystals and is quite common in Read More …
Geodized Brachiopods
Most active Ohio fossil collectors are familiar with collecting at the shale-like limestone road cuts in the vicinity of Georgetown, Ohio, a proven bountiful resource for well preserved Ordovician age Read More …