eBay

This listing is for an Elrathia kingi trilobite on matrix. The one in the picture is the one you will receive. The trilobite is 1 1/8 inch. The matrix is 2 1/4 inches by 1 1/2 inches. This is a nice specimen. It shows up well on the matrix. This item comes from Millard County Utah. The trilobite was one of the most abundant life forms of the Cambrian period, dating back over 500 million years. Trilobites were ocean floor dwelling arthropods that developed a body of three vertical lobes, a hard external covering, flexible joints and circulatory, nervous, digestive and reproductive systems.