Rare Chlustinia keyserlingi Lichid Trilobite

Description: Here is one of the more rare trilobites of the Order Lichida, Family Odontopleuridae known as Chlustinia keyserlingi. This particular example is quite large at 60 mm in length from the dramatic cephalon to the wonderful pygidial spines, and has a "wingspan" of 44 mm at the genal spines. Notice that the librigenae are tightly attached, a sign of a well-articulated specimen. It is quite prone, and dominates its bed of matrix. Few are ever offered; I have seen 3 personally inn the last 5 years, none as well-preserved as this example, which is exceptionally 3-D for an Ordovician trilobite.