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Echinoderms date back as far as the Cambrian period some 541
dating from 5
this form of copper also played an important role in the development of human cultures across the globe as they stepped out of the Stone Age and into the Age of Metals
878" chunk of Libyan Desert Glass
Dendraster Gibbsii - Fossilized Sand Dollar - 1.242" bridges Echinoderms date back as farFossilized at the bottom of the sea floor over 5,000,000 years ago, this Dendraster is a window into the ocean's past. The body plan of the animal has been preserved in beautiful detail, with their intricate skeletons still clearly visible. This particular fossil is a 1. 242" Dendraster gibbsii from the San Joaquin Valley deposit. The petroleum in this region provides a unique, natural stain to the item.
