This sponge fossil is called Porosphaera globularis from the Cretaceous Period. They were found in the region of Navarra, Spain. Accor...

This fossil was found in the Carlile Shale Formation of Grant County, South Dakota, USA. He has been carefully extracting the hidden foss...

My cousin has been working on some Carlile Shale Formation matrix. It was found in Grant County, South Dakota, USA. He has been carefully...