Trilobite in Shale (Elrathia sp.) - Utah and was first described in

and was first described in the early 1800s

leading them to name it the state gemstone

Nova Scotia

It brings good health

measured on longest diagonal Weight: 0

Trilobite in Shale (Elrathia sp.) - Utah and was first described inTrilobites are considered one of the most successful groups of animals to ever live on planet Earth. They lived for over 300 million years and there have been more than 20,000 different species identified. These creatures are members of the phylum Arthropoda. These animals are classified as having segmented bodies with an exoskeleton to protect their organs and muscles. Living examples include insects, spiders, crabs, lobsters, scorpions, and