HQRP-Crystal Set of 10PCS: Fossil Shark Vertebrae Bones Natural Fossilized Otodus Obliquus Collectible Mineral Stone Specimes - Morocco
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You will receive 10 pcs (different size) of Fossil Shark Vertebrae similar to the ones in the listing, the size and the color of the fossils may slightly vary as well due to the fact that all minerals are different. (Photos are taken under bright light!) Weight: from 2g / 0.07oz to 19g / 0.67oz; Size: from 14 x 13 x 9 mm / 9/16 x 1/2 x 3/8 Inches to 45 x 41 x 31 mm / 1 3/4 x 1 5/8 x 1 1/4 Inches;
Fossil shark remains are the most common Vertebrate fossil and are found around the world. The first sharks appeared around 450 million years ago during the Ordovician period. With sharks being cartilaginous not much of their body typically fossilizes. Despite this fact you can from time to time find Vertebrae, and far less frequently cartilage and rostral notes. Items that are much harder such as teeth and denticles made of dentine are the most common to fossilize.
Denticles are small, almost microscopic and cover the animals body. They assist it in various ways such as reducing drag when moving through the water. Various species of sharks have protective spines on their dorsal din. Because sharks are made of cartilage and not bone, it's a common misconception that teeth are the only parts that fossilize. Although shark teeth are by far the most common fossils, many other parts of sharks fossilize.
Shark skeletons are composed of cartilage. Cartilage, the stuff your ears and nose are made of, is much softer than bone, and rarely survives fossilization. Because of this, entire fossilized skeletons of sharks are, generally, a rare find. The vertebral centra (centers of vertebra) are the densest part of the shark skeleton and sometimes fossilize. Vertebral centra are disk shaped.
(The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)
