Fossil - Oyster (Gryphaea arcuata)
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Fossil - Oyster (Gryphaea arcuata)
Jurassic period, ca. 190 million years ago, Redcar, North Yorkshire, England.
A highly detailed fossil of an extinct species of oyster (Gryphaea arcuata). Gryphaea is an extinct genus of bivalve molluscs belonging to the oyster family (Ostreida). The fossils of this unique genus resemble a curved claw or claw, which is why they are also called "devil's claw". These oysters probably lived in large colonies in shallow seas. Their shells consist of two articulated parts, a claw-shaped shell and a smaller, flat shell that acted as a lid. Under the shell halves were located the mantle strips that secrete the shell, and under the mantle strips were the gill strips. Between the gill strips is the body and the foot. Oysters lived on the bottom of the water, often burrowing in the mud. They moved by pushing their feet between the shells and into the bottom mud. The fossil measures approximately 61mm x 44mm x 32mm. Weight approx. 89g.
Ritual use
On the altar, shells and conchs represent the element of water and are placed in the west, with earth in the north, air in the east, and fire in the south.
Note! Fossils are natural products, so each one is unique. Therefore, colors, shapes and brightness may vary. The condition varies from fair to good and there are typical wear, cracks and small chips for fossils.