Here are pictures of some Calymene breviceps trilobite fossils. They were found in the Waldron Shale of Indiana. They existed in the Silu...

Here are some pictures of a Silurian trilobite called the Calymene breviceps ? found in the Waldron Shale of Indiana. It is enrolled which...

This fossil appears to be the bottom of a Lyriocrinus calyx cup found in the Waldron Shale of Clark County, Indiana. It is dated to th...