*Authentic and very Unique Mass Mortality Plate of Elrathia Kingi Trilobites found in the West Desert of Utah. There are 11 small (1/4" and less) Complete and some upside down Trilobites on this plate measuring 6" wide, 3" tall and 3/8" thick.
*Also seen on the right side of the plate are remnants of a Sponge or Eocrinoid from the Cambrian Period.
*This is called a "Mortality Plate" because it is a frozen snapshot of a Mass Death Assemblage.
*Stand and Information Card Included.
*Specimens from the Cambrian Period Found in the Utah West Desert.
*Trilobites (meaning "Three-Lobed"), First Appeared In Our Oceans Approximately 550 Million Years Ago Before Going Extinct around 240 Million Years Ago.
*Near Complete (Molt) Trilobites are found more often than Complete Trilobites. Approximately a 4 (NC) to 1 (C) ratio.