Mass mortality plate showing a frozen snapshot of trilobite death assemblage from approximately 500 million years ago. Mined in the Wheeler Shale, House Range, Millard County, Utah.
This plate measures approximately 3 1/2" wide by 4 1/2" tall. These Elrathia kingii trilobites stand out very well on this unique light colored shale piece. There are three whole trilobites with some pieces and nice imprints! The largest trilobite measures 1" tall.
Stand and information card included.





