*Unique Mass Mortality Plate of Elrathia Kingi and Peronopsis Instricta Trilobites found in the West Desert of Utah. On this plate, measuring approximately 11.5" tall by 9.5" wide and 3/4" thick, you can see 4 whole Peronopsis Trilobites and 12 whole complete and molt trilobites with many other upside down, imprints and trilobite pieces scattered throughout.
*This is called a "Mortality Plate" because it is a frozen snapshot of a Mass Death Assemblage.
*Stand and Information Card Included.
*Trilobites (meaning "Three-Lobed"), First Appeared In Our Oceans Approximately 550 Million Years Ago Before Going Extinct around 240 Million Years Ago. From the Cambrian period.