Trilobite in Shale (Elrathia sp.) - Utah both of which are located

both of which are located in Northern Madagascar

These photos were taken with a backlight to better show the natural banding

This is an extinct cephalopod that lived during the Cretaceous Period

Chemical Formulas: 

Trilobite in Shale (Elrathia sp.) - Utah both of which are locatedTrilobites 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