Trilobite in Shale (Elrathia sp.) - Utah This specific shade of blue

This specific shade of blue would go on to be used by many artists

It is a 170-carat

and potassium

8 ozSpecies: Rastellum carinatumLocation: Mahajanga Province

These interesting sea creatures survived three different extinction events

Trilobite in Shale (Elrathia sp.) - Utah This specific shade of blueTrilobites 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