Internal view of an Orthospirifer brachiopod fossil found in the Jeffersonville Limestone of Clark County, Indiana.  Animal existed in t...

 Silurian period brachiopods that I have not identified with embedded pyrite crystals.  Last two images should have been stacked plus sti...

Rhynchotreta cuneata This post includes pictures of 19 different species of brachiopods found in the Waldron Shale of Clark County, Indi...