1.55" Fossil Synapsid/Amphibian Coprolite (Fossil Poop) - Texas

This is a rather unusual fossil, it is a coprolite (fossilized poop) from the Permian-aged Archer City Formation of Texas. Based on location it came from, it's likely that it came from the synapsids Dimetrodon or Edaphosaurus, or the amphibian Eryops. The coprolite measures 1.55" wide.