Microfossils of the Salem Limestone (aka Indiana Limestone) that existed in the Middle Mississippian Period (340-335 million years ago). Se...

Foraminifera fossils from the Salem Limestone of Washington County, Indiana. These creatures are called Endothyra baileyi and existed 360-...

Hundreds of millions of years before the dinosaurs, there existed a ferocious creature. Terror filled victims lay in its path as it ram...