These fossils are Megamyonia sp. found in the Maquoketa Formation of Fayette County, Iowa, USA. They existed in the Late Ordovician Perio...

A  Strophodonta brachiopod fossil found in the Milwaukee Formation of Wisconsin. This fossil needs to be cleaned as it has some interesti...

Here is the mold of a Bumastus ioxus trilobite fossil cephalon found in the Racine Formation middle Silurian Period. It was found in Mil...