Name:
Elrathia kingi Age: Cambrian Formation: Wheeler Location: Millard County, Utah Size: Trilobite is 1.3 inches long This specimen is not for sale Click here for similar specimens that are for sale
Here is a trilobite with a story to tell. This is a large Elrathia kingi from the Cambrian of Utah. The trilobite exhibits fine detail and is nicely articulated - both free cheeks are present and tightly attached. Now comes the story - the right side of the trilobite exhibits a large, beautifully defined bite mark! The predator was probably an Anomalocaris, the T. rex of the Cambrian seas. Did this bite cause the trilobite to die? We will never know for sure. The black trilobite contrasts nicely with the gray matrix. It is well presented on the natural plate of shale that also contains several partial Agnostid trilobites. This is an excellent (and highly unusual) example of predation amongst organisms of the Cambrian Sea.