This fossil appears to be a Megastrophia concava (Hall, 1857) brachiopod. The surface has some line patterns that might be from some sort o...

  While exploring the Jeffersonville Limestone of Clark County, Indiana USA, I found this crinoid calyx fossil. It is probably some sort sp...

  Recently, I was looking for a trilobite in the Jeffersonville Limestone of Clark County, Indiana USA. I did not find one, at a mostly inta...