I had high hopes for this trilobite fossil that was buried in matrix. It was possible that the cephalon or head was still buried in matrix...

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...