Description: Dinosaur gastrolith, stomach stone or gizzard from the Henry Mountains in Southern Utah.Gastroliths can be distinguished from stream- or beach-rounded rocks by several criteria: gastroliths are highly polished on the higher surfaces, with little or no polish in depressions or crevices, often strongly resembling the surface of worn animal teeth. Stream- or beach-worn rocks, particularly in a high-impact environment, show less polishing on higher surfaces, often with many small pits or cracks on these higher surfaces. Finally, highly polished gastroliths often show long microscopic hairline scratches, presumably caused by contact with a sharp corner of a freshly swallowed stone. Since most gastroliths were scattered when the animal died and many entered a stream or beach environment, some gastroliths show a mixture of these wear features. Others were undoubtedly swallowed by other dinosaurs and highly polished gastroliths may have been swallowed repeatedly. Dinosaur Gastrolith is from the Morrison Formation and it's about 148 million years old. The specimen measures about 1 3/4"x 1 3/8"x 1 1/2" and it weighs about 2.5 ounces. This specimen has fossils in the gizzard stone. No fossil collection is complete without a gizzard stone! A unique gift for that someone that has everything or kids!A gastrolith, also called a stomach stone or gizzard stone, is a rock held inside a gastrointestinal tract. Gastroliths in some species are retained in the muscular gizzard and used to grind food in animals lacking suitable grinding teeth. In other species the rocks are ingested and pass through the digestive system and are frequently replaced. The grain size depends upon the size of the animal and the gastrolith's role in digestion. Other species use gastroliths as ballast. Particles ranging in size from sand to cobble have been documented.Happy to eBay with you !
Price: 19.99 USD
Location: Layton, Utah
End Time: 2023-10-24T03:33:02.000Z
Shipping Cost: N/A USD
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Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Modified Item: No
