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Limited Edition Plesiosaur Bone Pendant Necklace

Please Note: Plesiosaur material suitable for making jewelry is exceedingly rare. It is unlikely we will ever have material like this again so we've opted to make this piece an individually numbered, limited edition. Once it is gone, it will very likely be gone forever.

Limited Edition Plesiosaur Bone Pendant Necklace

Featuring a long, snake-like neck and a stout body equipped with slender paddles, Plesiosaurs are one of the most readily identifiable of all ancient marine reptiles.

Handcrafted here at Mini Museum, this sterling silver pendant features a polished sphere of agatized Plesiosaur bone from the Lower Oxford Clay in Cambridgeshire, England. This formation dates to the Middle Jurassic Period roughly 165,000,000 years ago.

As pictured, the necklace arrives in a black display box. A small information card about the bone is also included inside. The card serves as the certificate of authenticity and can be found underneath the padded lining of the display box. Pictures here illustrate the range of color to be found in this specimen.


Featuring a long, snake-like neck and a stout body equipped with slender paddles, Plesiosaurs are one of the most readily identifiable of all ancient marine reptiles. Biomechanical reconstructions suggest that Plesiosaurs moved through the water in the same way that turtles or penguins do, more like flying than swimming. Scientists have also discovered that Plesiosaurs used their unique bodies to hunt for bottom-dwelling crustaceans.

With nearly 140 million years in the fossil record, Plesiosaurs were incredibly successful creatures. As air-breathing reptiles, they lived near the surface in the open seas, and were able to spread around the world. Fossilized skeletons of Plesiosaurs have been found in Europe, North America, and Australia. New paleontological evidence suggests that Plesiosaurs may have given birth to live young instead of laying eggs, adding an interesting twist to a very unique family of reptiles.

Above: Portrait of Mary Anning by an unknown artist, sometimes referred to as Mr. Grey. In the background is the Golden Cap headland, the highest point on the South Coast of England. Sleeping in the foreground is Tray, Ms. Anning's dog and fossil collecting companion. Tray was trained to sit next to interesting finds while Anning retrieved her equipment from other locations. He perished under a sudden cliff-face collapse in 1833 which nearly took Ms. Anning's life as well.

Yet, despite her firsthand experience and deep knowledge of these subjects, Ms. Anning was unable to take part officially in the scientific societies of the day which were only open to men. Her discoveries and observations were instead shared through others, with the one notable exception being her drawing of a complete Plesiosaur. In this instance, the noted French anatomist Georges Cuvier proclaimed the animal a hoax. It would take numerous examinations and debate before Cuvier would reverse his position and admit he'd rushed to judgement.

Ms. Anning died in 1847 of breast cancer. It would take another 163 years for the Royal Society to recognize her influence in the advancement of science.

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