Description
This is a VERY UNIQUE PIECE. Here is your chance to own a classic fossil from a classic site.
This is a Detailed Fossil Cystoid. It was collected decades ago and just recently prepared by our prep lab. It also displays exceptional detail in the theca. The arms are clearly visible and outstanding.
Here is a Super detailed fossil from a classic site in Canada.
Fossils especially this Fossil Pleurocystites Cystoid from this site are preserved in Spectacular detail. Because of the large number of these Cystoids it is also assumed they lived in dense communities.
This is actually an animal related to modern day starfish so they are echinoderms. They have modern relatives called crinoids that live in the deep oceans today. So then they lived in shallow salt water seas and lagoons.
Although there were many species of Cystoids, they shared a basic body styles consisting of a stem by which it anchored to the sea floor with a “holdfast”, a theca which enclosed soft body tissues, and arms which filtered food from the water.
Cystoids thrived in the warm shallow inland sea that covered the area during the Ordovician Period. These are generally found in the sediments of Brechin, Ontario. Because the bedrock is so hard it takes painstaking work to prepare them. The cystoids living near what is now Brechin, Ontario were established near an ocean delta system that periodically buried the colonies in silt. This silt eventually hardened into stone that preserved the cystoids in glorious detail.
This Fossil Pleurocystites cystoid has exceptional detail . The theca is 2 3/8 from the tip of the arms to the base of the stem. It has exceptional detail. The matrix is a roughly square shape 4 1/2 by 3 inches. It has been meticulously prepared using air abrasive technology.
