Spectacular Elrathia kingii Trilobites in Matrix | Utah

 Spectacular Elrathia kingii trilobite specimens in matrix from Utah, USA This gorgeous Elrathia kingii trilobite specimen boasts of mass mortality. Largest specimen measures approx. 5cm x 3.5cm, smaller specimens measure anywhere from .75cm- 2.25cm and matrix measures approx. 8.5" x 5.5" x .75"-1.5".  Amazing specimen for collectors or institutions. Almost 11 complete trilobites  Elrathia is a genus of ptychopariid trilobite species that lived during the Middle Cambrian of Utah and possibly British Columbia. This beautiful specimen is from Utah, USA in the Wheeler formation. (approximately 505 million years ago) Genus: †Elrathia; Walcott, 1924 Phylum: Arthropoda Order: Ptychopariida Rank: Genus Class: †Trilobita Family: †Alokistocaridae