Here is a prep series of a tiny Pseudodechenella lucasensis from the Mid-Devonian Silica Shale that I found in Paulding, Ohio, yesterday.  Not complete, but not a common find, so I am very happy with what I got.  I'm probably going to restore this by sculpting the genal spines, etc.   1.  Farm Fresh   2. Roughly exposed with pin vice.   3. More cleaning with pin vice.   4. Final product after air abrasion with dolomite.