Dendraster Gibbsii - Fossilized Sand Dollar - 1.166" glyptodon this material comes from the

this material comes from the personal collection of retired NASA Production Control Engineer William R

A small specimen card is also included

each specimen is wrapped in bubble wrap for the protection of the specimen and the case

causing the American market to disappear until the development of pearl cultivation

a period where cyanobacteria photosynthesized massive amounts of free oxygen

Dendraster Gibbsii - Fossilized Sand Dollar - 1.166" glyptodon this material comes from theFossilized 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. 166" Dendraster gibbsii from the San Joaquin Valley deposit. The petroleum in this region provides a unique, natural stain to the item.