This is a very complete crown trilobite. Most crown trilobites are broken, but this one is very complete. The Crown Trilobite (Coronocephalus) is an extinct trilobite belonging to a genus within the Trilobita subphylum. These trilobites lived from the late Cambrian to the early Ordovician period, approximately 500 million years ago, primarily inhabiting ancient oceans. They are characterized by a crown-like protrusion, hence the name. The Crown Trilobite holds significance in trilobite research, contributing to our understanding of paleobiology and paleogeography. This one is bigger than the others of the same species! Size: 6*3 cm No reserve price!