1.6" Elrathia Kingi Trilobite Fossil Utah Cambrian Age 521 Million Years Old COA Ophiura These dinosaurs weighed between 2

These dinosaurs weighed between 2 and 4 tons and mostly moved on all fours

and tearing through whales

This clam fossil from Madagascar preserves a creature from the Jurassic Period

and distinctive structure

Preserved with the fish in the laminated limestone is a complete aquatic ecosystem:  cyanobacteria

1.6" Elrathia Kingi Trilobite Fossil Utah Cambrian Age 521 Million Years Old COA Ophiura These dinosaurs weighed between 2Location: Utah House Range Antelope Springs, Millard County Weight: 0. 3 Ounces Dimensions: 1. 6 Inches Long, 1. 2 Inches Wide, 0. 2 Inches Thick Comes with a free Certificate of Authenticity. The item pictured is the one you will receive. Elrathia Kingi Trilobite Trilobites are an extinct group of marine arthropods belonging to the class Trilobita and are among the earliest arthropods known to science. Their first appearance in the fossil record,