Here is a trilobite found by a KYANA Geological Society (www.kyanageo.org) member on a field trip some years ago. It is a Trimerus delphinocephalus (Green) from the Silurian Period. It was found in the Waldron Shale layer in Clark County, Indiana.
This image shows the trilobite in two pieces: part of the head and thorax/back. Maybe it was a molt. See this link for different picture of this same specimen: http://www.kyanageo.org/Fossils/silurian/arthropoda/trimerus_delphinocephalus.jpg
Here is a link that shows another from the same area but it appears fully intact: http://weekstrilobites.com/Trimerus.htm