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Dinosaur Stomach Stone (Gastrolith) In Matrix

** This small stone was in a dinosaur's stomach**

AGE - 146.8 - 156.3 Million Years Old


Discovered - West colorado, Morrison Formation


Like some modern birds, Dinosaurs ate and used Gizzard stones in their stomach to aid in digestion, giving them a specific polish and easily identifiable when discovered alongside Dinosaur fossils. 


* Gastrolith *

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 indigestion. Other species use gastroliths as ballast. Particles ranging in size from sand to cobble have been documented.


* The Morrison Formation *

The Morrison Formation is a distinctive sequence of Upper Jurassic sedimentary rock found in the western United States which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone, and limestone and is light gray, greenish-gray, or red. Most of the fossils occur in the green siltstone beds and lower sandstones, relics of the rivers and floodplains of the Jurassic period.

Dinosaur Stomach Stone In Matrix

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    -Limited Lifetime Authenticity Guarantee-

    The Smoky Mountain Relic Room stands behind the items we sell with a limited lifetime guarantee. We will exchange any item for store credit if the item sold is found by a certified authenticator not to be the authentic artifact, fossil, meteorite, or mineral that we advertised it as being. A letter, specific to the artifact, fossil, meteorite, or mineral in question, from a certified authenticator (in the business under the occupation-specific to the item in question), must be brought in with the item for the return to be acceptable. This guarantee is for the lifetime of the initial purchaser only. See the Relic Room Manager, downstairs inside Smoky Mountain Knife Works, for more information. Original receipt required for exchanges.

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