Calymene Trilobite After Cleaning

Here are pictures of a Silurian Calymene trilobite found in the Waldron Shale of Clark County, Indiana.  It had quite a bit of glue residue on it from earlier prep work. The glue was needed after pieces of the shell broke from too much pressure being applied by the prepping needle.  The matrix was downsized with a diamond saw.  A micro-scribe was used to reveal more of the cheeks.

Check on the next post to see this fossil in its polished state.

Thanks to Kenny for help with finishing the prep work on this fossil.

Here is a history of some of the prep work done on this fossil.


September 25, 2010: http://louisvillefossils.blogspot.com/2010/09/calymene-challenge.html

September 26, 2010: http://louisvillefossils.blogspot.com/2010/09/progress-on-calymene.html

September 30, 2010: http://louisvillefossils.blogspot.com/2010/09/calymene-update.html

October 22, 2010: http://louisvillefossils.blogspot.com/2010/10/calymene-update-part-2.html

December 20, 2010: http://louisvillefossils.blogspot.com/2010/12/calymene-update-part-3.html

Eucalyptocrinites Calyx with Bryozoan

Here is an Eucalyptocrinites calyx cup with some coverage of bryozoan.  Recently, I did some matrix removal on this fossil.  Some of the spikes became visible as well as some of the plate details.  See following images for closeups of some of the calyx plates.

I believe the fossil is from Shelby County, Indiana found in the Waldron Shale of the Silurian Period.

Fossil belongs to Dave at Views of the Mahantango blog.

Prepped Echinoid from Chalk Matrix

This unidentified echinoid appears to be from the Cretaceous of Texas.  It was extracted from a chalk matrix by me and sand abrasive cleaned by my cousin Kenny.

The chalk like matrix breaks off in chunks pretty easily with the engraver.  The soft matrix was removed relatively easy with the abrasive cleaning.

It belongs to Dave over at Views of the Mahontango blog and he later may provide more info about it.

This little creature would pop up from time to time while the fossil was being engraved out of the chalk matrix.  It had an amazing blue tail which I could catch a photograph of.

Next three images show matrix on fossil before it was abrasively cleaned.