Here is my Christmas image for 2013 created with fossils found in the Waldron Shale of Indiana. They date back about 420 million years (S...

Here is a picture of fossil burrows of the  Scalarituba missouriensis w orm. They were found in the Rosewood Shale of Floyd County, Indian...

Here is a picture of worm burrows. It was found in Mississippian Period rock in Floyd County, Indiana, USA. Thanks to Kenny for the pict...