Trilobite in Defensive Posture (Enrolled) 【Origin】 Ohio, USA 【Age】 Ordovician Period (approximately 488 to 443 million years ago) 【Size】 Approximately 18 x 14 x 13 mm This is a fossil of the rolled-up trilobite "Flexicalymene". It has curled up like a pill bug, taking a defensive posture to protect its soft body. This trilobite in a defensive posture fascinates collectors. I have other fossils for sale, so please consider them as well. #Luna'sFossils Defensive Posture Calymene Phacops