Elrathia Kingii is a genus of ptychopariid trilobite species that lived during the Middle Cambrian of Utah, and possibly British Columbia.
Trilobites meaning three lobes are a well-known fossil group of extinct marine arthropods that form the class Trilobita. The earliest trilobites known from the fossil records are dated to some 520 to 540 million years ago.
Beautifully detailed example of an Elrathia Kingii trilobite
Approx Size: 25mm