Cruziana Trilobite Tracks - SOLD 4.341" rockinaboxpliosaur and following a succession of

and following a succession of name changes

recovered on private land from the Hell Creek Formation

Color varies from gray to red as do shapes and thickness

This specimen is a native copper crystal recovered in Kazakhstan

Cruziana Trilobite Tracks - SOLD 4.341" rockinaboxpliosaur and following a succession ofThe Cambrian Explosion brought new life and diversity to the ocean. 521,000,000 years ago, the first trilobites emerged in the fossil record thanks to this evolutionary event. With a tough exoskeleton, trilobites were one of the earliest known arthropods and quickly spread across the planet thanks to their incredible adaptability. This specimen is a 4. 341" trilobite Cruziana track fossil recovered from Morocco's Anti Atlas Mountain Range. Trace